THT Solutions Jsc.,

Designed in a compact, versatile 1U rack form factor, the dual-socket Lenovo System x3550 M5 (E5-2600 v4) server fuels almost any workload in the software-defined data center from infrastructure to high-performance computing (HPC) to cloud or big data with leadership security, efficiency, and reliability features. With support for Intel Xeon processor E5-2600 v4 product family and faster, energy-efficient TruDDR4 memory, the System x3550 M5 delivers exceptional performance. Flexible and scalable internal storage configurations include up to 12x 2.5-inch or 4x 3.5-inch drives with a wide selection of drive sizes and types.

This product guide provides essential pre-sales information to understand the structure of the System x3550 M5 offering, its key features and specifications, components and options, and configuration guidelines.

This guide is intended for technical specialists, sales specialists, sales engineers, IT architects, and other IT professionals who want to learn more about the System x3550 M5 and consider its use in IT solutions.

Notes:

This Product Guide describes models of the Lenovo System x3550 M5 (Machine Type 8869) with the Intel Xeon processor E5-2600 v4 product family.
For models of the Lenovo System x3550 M5 (Machine Type 5463) with the Intel Xeon processor E5-2600 v3 product family, see the following Product Guide: Lenovo System x3550 M5 (E5-2600 v3).

Key features

The System x3550 M5 is a cost- and density-balanced 1U, dual-socket business-critical server, offering improved performance and pay-as-you grow flexibility along with new features that improve server management capability. New, innovative, energy-smart design with powerful high-performance processors, a large capacity of high-performing DDR4 memory, and an improved feature set are ideal for business-critical applications and cloud deployments.

Combining balanced performance and flexibility, the System x3550 M5 is a great choice for small and medium businesses and up to the large enterprise. It can provide outstanding uptime to keep business-critical applications and cloud deployments running safely. Ease-of-use and comprehensive systems management tools make it easy to deploy. Outstanding reliability, availability, and serviceability (RAS) and high-efficiency design improve your business environment and help save operational costs.

Scalability and performance

The System x3550 M5 offers numerous features to boost performance, improve scalability, and reduce costs:

Improves productivity by offering superior system performance with the Intel Xeon processor E5-2600 v4 product family with up to 22-core processors, up to 55 MB of L3 cache, and up to 9.6 GT/s QPI interconnect links.
- Support for up to two processors, 44 cores, and 88 threads allows to maximize the concurrent execution of multithreaded applications.
- Intelligent and adaptive system performance with energy efficient Intel Turbo Boost Technology allows CPU cores to run at maximum speeds during peak workloads by temporarily going beyond processor thermal design power (TDP).
- Intel Hyper-Threading Technology boosts performance for multithreaded applications by enabling simultaneous multithreading within each processor core, up to two threads per core.
- Intel Virtualization Technology integrates hardware-level virtualization hooks that allow operating system vendors to better utilize the hardware for virtualization workloads.
Up to 2400 MHz memory speeds with two DIMMs per channel running at 2400 MHz to help maximize system performance.
Up to 1.5 TB of memory capacity with 64 GB Load Reduced DIMMs (LRDIMMs)
12 Gbps serial-attached SCSI (SAS) internal storage connectivity doubles the data transfer rate compared to 6 Gb SAS solutions to maximize performance of storage I/O-intensive applications.
Flexible and scalable internal storage configurations provide up to 46 TB with 3.84 TB 2.5-inch solid-state drives (SSDs) or up to 40 TB of storage capacity with 10 TB 3.5-inch hard disk drives (HDDs) in a 1U rack form factor.
The use of SSDs instead of or along with traditional spinning HDDs can significantly improve I/O performance. An SSD can support a significantly higher number of I/O operations per second (IOPS) than a typical HDD.
The server has four integrated Gigabit Ethernet ports and optional 10 Gb Ethernet ports with mezzanine LOM (ML2) adapters.
The server offers up to four PCI Express (PCIe) 3.0 I/O expansion slots in a dense 1U rack form factor.
With Intel Integrated I/O Technology, the PCI Express 3.0 controller is integrated into the Intel Xeon processor E5-2600 v4 product family. This helps to dramatically reduce I/O latency and increase overall system performance.

Availability and serviceability

The System x3550 M5 provides many features to simplify serviceability and increase system uptime:

Tool-less cover removal provides easy access to upgrades and serviceable parts, such as processors, memory DIMMs, and adapter cards.
The server offers hot-swap drives supporting RAID redundancy for data protection and greater system uptime.
The server offers redundant hot-swap power supplies and hot-swap redundant fans to provide availability for business-critical applications.
The new next-gen light path diagnostics LCD display panel simplifies servicing, speeds up problem resolution, and helps improve system availability.
Proactive Platform Alerts (including PFA and SMART alerts): Processors, voltage regulators, memory, internal storage (SAS/SATA HDDs and SSDs, NVMe SSDs, M.2 storage, flash storage adapters), fans, power supplies, RAID controllers, and server ambient and sub-component temperatures. Alerts can be surfaced through the system IMM to managers such as Lenovo XClarity Administrator, VMware vCenter, and Microsoft System Center. These proactive alerts let you take appropriate actions in advance of possible failure, thereby increasing server uptime and application availability.
SSDs offer significantly better reliability than traditional mechanical HDDs for greater uptime.
Built-in Integrated Management Module II (IMM2.1) continuously monitors system parameters, triggers alerts, and performs recovery actions in case of failure, to minimize downtime.
Built-in diagnostics using Dynamic Systems Analysis (DSA) Preboot speed up troubleshooting to reduce service time.

Manageability and security

Powerful systems management features simplify local and remote management of the System x3550 M5 and deliver enterprise-class data protection:

The server includes an Integrated Management Module II (IMM2.1) to monitor server availability and perform remote management.
An integrated industry-standard Unified Extensible Firmware Interface (UEFI) enables improved setup, configuration, and updates, and simplifies error handling.
Lenovo XClarity Administrator offers comprehensive hardware management tools that help to increase uptime, reduce costs and improve productivity through advanced server management capabilities.
An integrated Trusted Platform Module (TPM) supports the enablement of advanced cryptographic functionality, such as digital signatures and remote attestation.
System x Trusted Platform Assurance, an exclusive set of System x security features and practices, establishes a solid security foundation for workloads by delivering firmware that is securely built, tested, digitally signed, and verified prior to execution.
The server offers enterprise-class data protection with optional self-encrypting drives.

Energy efficiency

The System x3550 M5 offers the following energy-efficiency features to save energy, reduce operational costs, increase energy availability, and contribute to a green environment:

Energy-efficient planar components help lower operational costs.
High-efficiency power supplies with 80 PLUS Platinum and Titanium certifications.
Intel Intelligent Power Capability powers individual processor elements on and off as needed, to reduce power draw.
Low-voltage Intel Xeon processors draw less energy to satisfy the demands of power and thermally constrained data centers and telecommunication environments.
Low-voltage 1.2 V DDR4 memory DIMMs offer energy savings compared to 1.35 V and 1.5 V DDR3 DIMMs.
The server uses hexagonal ventilation holes, a part of Calibrated Vectored Cooling™ technology. Hexagonal holes can be grouped more densely than round holes, providing more efficient airflow through the system.
Lenovo XClarity Energy Manager provide advanced data center power notification, analysis, and policy-based management to help achieve lower heat output and reduced cooling needs.

Components and connectors

The following figure shows the front of the System x3550 M5 server with up to eight 2.5-inch drive bays and the Front IO cage Entry (default).

Figure 2. Front view of the System x3550 M5: 8x 2.5-inch drive bays; Front IO cage Entry (default)

The following figure shows the front of the System x3550 M5 server with up to eight 2.5-inch drive bays and the Front IO cage Standard (optional).

Figure 3. Front view of the System x3550 M5: 8x 2.5-inch drive bays; Front IO cage Standard (optional)

The following figure shows the front of the System x3550 M5 server with up to eight 2.5-inch drive bays and the Front IO cage Advanced (optional).

Figure 4. Front view of the System x3550 M5: 8x 2.5-inch drive bays; Front IO cage Advanced (optional)

The following figure shows the front of the System x3550 M5 server with ten 2.5-inch drive bays.

Figure 5. Front view of the System x3550 M5: 10x 2.5-inch drive bays

The following figure shows the front of the System x3550 M5 server with eight 2.5-inch SAS/SATA and two 2.5-inch PCIe drive bays.

Figure 6. Front view of the System x3550 M5: 8x 2.5-inch SAS/SATA + 2x PCIe drive bays

The following figure shows the front of the System x3550 M5 server with four 3.5-inch drive bays.

Figure 7. Front view of the System x3550 M5: 4x 3.5-inch drive bays

The following figure shows the rear of the System x3550 M5 server with three PCIe low profile slots.

Figure 8. Rear view of the System x3550 M5

The following figure shows the locations of key components inside the server.

Figure 9. Internal view of the System x3550 M5

System specifications

The following table lists the system specifications.

Table 1. System specifications
Components	Specification
Machine type	8869
Form factor	1U rack-mount
Processor	Up to two processors of the Intel Xeon processor E5-2600 v4 product family: Up to 22 cores (2.2 GHz core speeds) Up to 3.5 GHz core speeds (4 cores) Two QPI links up to 9.6 GT/s each Up to 55 MB cache Up to 2400 MHz memory speed
Chipset	Intel C612.
Memory	Up to 24 DIMM sockets (12 DIMMs per processor; four memory channels per processor with three DIMMs per channel). Support for RDIMMs and LRDIMMs. Memory types cannot be intermixed. Memory speed up to 2400 MHz.
Memory maximums	With RDIMMs: Up to 768 GB with 24x 32 GB RDIMMs and two processors With LRDIMMs: Up to 1.5 TB with 24x 64 GB LRDIMMs and two processors
Memory protection	Error correction code (ECC), Chipkill (for x4-based memory DIMMs), memory mirroring, and memory rank sparing.
Drive bays	Up to 12x 2.5" SAS/SATA hot-swap drive bays: 10x 2.5" (front) + 2x 2.5" (rear) 8x 2.5" SAS/SATA hot-swap (front) + 2x PCIe SSD non-hot-swap (front) drive bays Up to 8x 2.5" SAS/SATA hot-swap drive bays: 4x 2.5" (front) + 4x 2.5" (front) 4x 3.5" SAS/SATA hot-swap drive bays (front)
Maximum internal storage	Up to 46 TB with 3.84 TB 2.5" SAS SSDs Up to 40 TB with 10 TB 3.5" NL SAS or NL SATA HDDs Up to 24 TB with 2 TB 2.5" NL SATA HDDs Up to 21.6 TB with 1.8 TB 2.5" SAS HDDs Up to 4 TB with 2 TB NVMe PCIe SSDs Intermix of SAS, SATA, and PCIe drives is supported.
Storage controller	12 Gb SAS/SATA RAID: RAID 0, 1, 10 with M1215 or M5210. Optional upgrade to RAID 5, 50 is available for M1215. Optional upgrade to RAID 5, 50 is available for M5210 (zero-cache; 1 GB non-backed cache; 1 GB, 2 GB, or 4 GB flash-backed cache). Optional upgrade to RAID 6, 60 is available for M5210 (requires a cache upgrade). Optional SSD Caching and Performance Accelerator upgrades are available for M5210. 12 Gb SAS/SATA non-RAID: N2215 HBA
Optical drive bays	One, optional, for models with 4 or 8 drive bays (models with 10 drive bays do not support an internal optical drive). Support for DVD-ROM or Multiburner.
Tape drive bays	None. Support for an external backup unit.
Network interfaces	Four integrated RJ-45 Gigabit Ethernet 1000BASE-T ports (BCM5719); optional Mezzanine LOM (ML2) slot for dual-port 10 GbE cards with SFP+ or RJ-45 connectors or quad-port GbE cards with RJ-45 connectors.
PCI Expansion slots	Up to four slots, depending on the riser cards installed. The slots are as follows: Slot 1: PCIe 3.0 x16 or ML2; low profile, half-length (not present if the HDD Rear Kit is installed) Slot 2: PCIe 3.0 x16 or PCIe 3.0 x8; low profile or full-height, half-length (PCIe 3.0 x16 slot requires the second processor to be installed) (not present if the HDD Rear Kit is installed) Slot 3: PCIe 3.0 x16 or PCIe 3.0 x8; low profile, half-length Slot 4: PCIe 3.0 x8 (dedicated for an internal storage controller)
Ports	Front: 4x 3.5" and 10x 2.5" drive bay models: 3x USB 2.0 and 1x DB-15 video ports. 8x 2.5" drive bay models: 1x USB 2.0 (standard); or 2x USB 2.0 and 1x DB-15 video ports (optional). Rear: 2x USB 3.0, 1x DB-15 video, 1x RJ-45 systems management, 4x RJ-45 GbE network ports. Optional 1x DB-9 serial port. Internal: 1x USB 2.0 port (for embedded hypervisor), 1x SD Media Adapter slot (for embedded hypervisor)
Cooling	Calibrated Vectored Cooling with up to seven redundant hot-swap system fans (five fans standard, two additional fans with the second processor or with the optional fan kit for models with one processor and with select adapters used); dual fan zones with N+1 fan redundancy; each fan has two motors.
Power supply	Up to two redundant hot-swap 550 W, 750 W, or 900 W (100-240V), or 1500 W (200-240V) High Efficiency Platinum AC power supplies, or 750 W (200-240V) High Efficiency Titanium AC power supplies, or 900 W High Efficiency -48 V DC power supplies.
Hot-swap parts	Hard drives, power supplies, and fans.
Systems management	Unified Extensible Firmware Interface (UEFI), Integrated Management Module II (IMM2.1) based on Renesas SH7758, Predictive Failure Analysis, light path diagnostics, Automatic Server Restart, ToolsCenter, XClarity Administrator, and XClarity Energy Manager. Optional IMM2.1 Advanced Upgrade for remote presence (graphics, keyboard and mouse, virtual media).
Security features	Power-on password, administrator's password, Trusted Platform Module (TPM) 1.2 or 2.0 (configurable UEFI setting). Optional lockable front bezel.
Video	Matrox G200eR2 with 16 MB memory integrated into the IMM2.1. Maximum resolution is 1600x1200 at 75 Hz with 16 M colors.
Operating systems	Microsoft Windows Server 2012, 2012 R2, and 2016; Red Hat Enterprise Linux 7; SUSE Linux Enterprise Server 11 and 12; VMware vSphere (ESXi) 5.5 and 6.0.
Warranty	Three-year customer-replaceable unit and onsite limited warranty with 9x5/Next Business Day.
Service and support	Optional service upgrades are available through the Lenovo Services: 4-hour or 2-hour response time, 6 hours fix time, one-year or two-year warranty extension, software support for System x hardware and selected System x and third-party (Microsoft, Linux, VMware) software.
Dimensions	Height: 43 mm (1.7 in), width: 434 mm (17.1 in), depth: 734 mm (28.9 in)
Weight	Minimum configuration: 13.8 kg (30.4 lb), maximum: 19.3 kg (42.5 lb)

Standard models

The following table lists the standard models of the System x3550 M5.

Product availability: Standard models of the x3550 M5 (E5-2600 v4) are not available in North America.

Table 2. Standard models
Model number*	Intel Xeon processor# (2 maximum)	Memory (RDIMM)	RAID	Drive bays (std / max)	Drives	NIC	I/O slots (std / max)	Optical drive	LCD display	Power supply (std / max)§
Models announced March 2016
8869A2x	1x E5-2603 v4 6C 1.7GHz 15MB 1866MHz 85W	1x 8GB**	M1215	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option†	Option‡	1x 550W HS / 2
8869B2x	1x E5-2609 v4 8C 1.7GHz 20MB 1866MHz 85W	1x 8GB**	M1215	4x 3.5" HS / 4	Open bay	4x GbE	2 / 4^	Option	None	1x 550W HS / 2
8869C2x	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option†	Option‡	1x 550W HS / 2
8869C4x	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M1215	4x 3.5" HS / 4	Open bay	4x GbE	2 / 4^	Option	None	1x 550W HS / 2
8869D2x	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M5210 1GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option†	Option‡	1x 550W HS / 2
8869F2x	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210 1GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option†	Option‡	1x 550W HS / 2
8869G2x	1x E5-2650 v4 12C 2.2GHz 30MB 2400MHz 105W	1x 16GB	M5210 1GB (F)	10x 2.5" HS / 12	Open bay	4x GbE	2 / 4^	None	None	1x 900W HS / 2
8869R2x	1x E5-2660 v4 14C 2.0GHz 35MB 2400MHz 105W	1x 16GB	M5210 2GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option	Included	1x 750W HS / 2
8869Q2x	1x E5-2667 v4 8C 3.2GHz 25MB 2400MHz 135W	1x 16GB	M5210 2GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option	Included	1x 750W HS / 2
8869L2x	1x E5-2690 v4 14C 2.6GHz 35MB 2400MHz 135W	1x 16GB	M5210 2GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option†	Option‡	1x 750W HS / 2***
8869N2x	1x E5-2697 v4 18C 2.3GHz 45MB 2400MHz 145W	1x 16GB	M5210 2GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option	Included	1x 900W HS / 2

* x in the Model number represents a country-specific letter (for example, the EMEA model number is 8869A2G). Ask a Lenovo representative for specifics.
# Processor detail: Processor quantity and model, cores, core speed, cache, memory speed, and thermal design power (TDP).
§ Unless otherwise specified in a footnote, the power supplies are 80 PLUS Platinum certified.
** 8 GB 1Rx4 memory DIMM (46W0825).
† An optional optical drive requires the front IO cage Standard (00MV367) or Advanced (00MV368).
‡ An optional LCD panel is included in the front IO cage Advanced (00MV368).
*** Titanium power supply; supports 200-240 V AC only.
^ Two I/O slots standard: The onboard PCIe 3.0 x8 slot 4 and low profile PCIe 3.0 x16 slot 1 on the Riser Card 1 (feature code A5AG).

The standard models of the System x3550 M5 that are listed in Table 2 are shipped with the following items:

Statement of Limited Warranty
Important Notices
Rack Installation Instructions
Documentation CD containing Installation and User's Guide
System x3550 M5 non-ball bearing slide (Models Q2x and R2x)
System x3550 M5 Slide Kit G4 (All models except Q2x and R2x)

Notes:

Cable Management Arm (CMA) is not included; see Rack installation for ordering information.
Power cables are not included; see Power supplies and cables for ordering information.

TopSeller models

The following table lists the TopSeller models of the System x3550 M5.

Note: TopSeller models are country-specific; that is, each country may define their own server models, and not all server models are available in every country.

Table 3. TopSeller models
Model number	Intel Xeon processor# (2 maximum)	Memory (RDIMM)	RAID	Drive bays (std / max)	Drives	NIC	I/O slots (std / max)	Optical drive	LCD display	Power supply (std / max)§
TopSeller - United States, Canada
8869KAU	1x E5-2603 v4 6C 1.7GHz 15MB 1866MHz 85W	1x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KBU	1x E5-2603 v4 6C 1.7GHz 15MB 1866MHz 85W	1x 16GB	M1215	4x 3.5" HS / 4	Open bay	4x GbE	1 / 4	Option	None	1x 900W HS / 2
8869KCU	1x E5-2609 v4 8C 1.7GHz 20MB 1866MHz 85W	1x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KDU	1x E5-2609 v4 8C 1.7GHz 20MB 1866MHz 85W	1x 16GB	M1215	4x 3.5" HS / 4	Open bay	4x GbE	1 / 4	Option	None	1x 900W HS / 2
8869KXU	1x E5-2609 v4 8C 1.7GHz 20MB 1866MHz 85W	4x 16GB	M1215	4x 3.5" HS / 4	4x 1TB 7.2K	4x GbE	1 / 4	Option	None	2x 900W HS / 2
8869KZU	2x E5-2609 v4 8C 1.7GHz 20MB 1866MHz 85W	2x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	2x 900W HS / 2
8869KEU	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KFU	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M1215	4x 3.5" HS / 4	Open bay	4x GbE	1 / 4	Option	None	1x 900W HS / 2
8869K3U	2x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	2x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	2x 900W HS / 2
8869KGU	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KHU	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M5210	4x 3.5" HS / 4	Open bay	4x GbE	1 / 4	Option	None	1x 900W HS / 2
8869KYU	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	4x 16GB	M1215	4x 3.5" HS / 4	4x 1TB 7.2K	4x GbE	1 / 4	Option	None	2x 900W HS / 2
8869KQU	1x E5-2637 v4 4C 3.5GHz 15MB 2400MHz 135W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KJU	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KKU	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210	4x 3.5" HS / 4	Open bay	4x GbE	1 / 4	Option	None	1x 900W HS / 2
886916E	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210	10x 2.5" HS / 12	Open bay	4x GbE	1 / 4	None	None	1x 900W HS / 2
8869KUU	2x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	2x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	2x 900W HS / 2
8869KLU	1x E5-2650 v4 12C 2.2GHz 30MB 2400MHz 105W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
886916I	1x E5-2660 v4 14C 2.0GHz 35MB 2400MHz 105W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option†	Option‡	1x 900W HS / 2
8869KVU	2x E5-2660 v4 14C 2.0GHz 35MB 2400MHz 105W	2x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option	Option‡	2x 900W HS / 2
8869KRU	1x E5-2667 v4 8C 3.2GHz 25MB 2400MHz 135W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KNU	1x E5-2680 v4 14C 2.4GHz 35MB 2400MHz 120W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
886916B	1x E5-2680 v4 14C 2.4GHz 35MB 2400MHz 120W	1x 16GB	M5210	10x 2.5" HS / 12	Open bay	4x GbE	1 / 4	None	None	1x 900W HS / 2
8869KMU	1x E5-2690 v4 14C 2.6GHz 35MB 2400MHz 135W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KPU	1x E5-2690 v4 14C 2.6GHz 35MB 2400MHz 135W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
8869KWU	2x E5-2690 v4 14C 2.6GHz 35MB 2400MHz 135W	2x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option	Option‡	2x 900W HS / 2
8869KSU	1x E5-2697 v4 18C 2.3GHz 45MB 2400MHz 145W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
886916D	1x E5-2697 v4 18C 2.3GHz 45MB 2400MHz 145W	1x 16GB	M5210	10x 2.5" HS / 12	Open bay	4x GbE	1 / 4	None	None	1x 900W HS / 2
8869KTU	1x E5-2699 v4 22C 2.2GHz 55MB 2400MHz 145W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 900W HS / 2
TopSeller - Europe, Middle East and Africa
8869ECG	1x E5-2603 v4 6C 1.7GHz 15MB 1866MHz 85W	1x 8GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869EDG	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869ETG	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M5210	10x 2.5" HS / 12	Open bay	4x GbE	1 / 4	None	None	1x 750W HS / 2
8869EFG	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869EJG	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
8869EAG	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M5210	4x 3.5" HS / 4	Open bay	4x GbE	1 / 4	Option	None	1x 750W HS / 2
8869ENG	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 8GB	M5210 1GB (F)	8x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option	Option‡	1x 550W HS / 2
8869E3G	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M5210 2GB (F)	8x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option	Option‡	1x 750W HS / 2
8869EEG	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M1215	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869EGG	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869EKG	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
8869EQG	1x E5-2630 v4 10C 2.2GHz 25MB 2133MHz 85W	1x 16GB	M5210 2GB (F)	4x 2.5" HS / 8	2x 300GB 10K	4x GbE	1 / 4	Option†	Option‡	2x 750W HS / 2
8869EBG	1x E5-2630L v4 10C 1.8GHz 25MB 2133MHz 55W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869EHG	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869ELG	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
8869EPG	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210 2GB (F)	8x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
8869EUG	1x E5-2650 v4 12C 2.2GHz 30MB 2400MHz 105W	1x 16GB	M5210	10x 2.5" HS / 12	Open bay	4x GbE	1 / 4	None	None	1x 900W HS / 2
8869E2G	1x E5-2650 v4 12C 2.2GHz 30MB 2400MHz 105W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 550W HS / 2
8869EMG	1x E5-2650 v4 12C 2.2GHz 30MB 2400MHz 105W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
8869ERG	1x E5-2680 v4 14C 2.4GHz 35MB 2400MHz 120W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
8869EVG	1x E5-2690 v4 14C 2.6GHz 35MB 2400MHz 135W	1x 16GB	M5210	10x 2.5" HS / 12	Open bay	4x GbE	1 / 4	None	None	1x 900W HS / 2
8869ESG	1x E5-2690 v4 14C 2.6GHz 35MB 2400MHz 135W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	1 / 4	Option†	Option‡	1x 750W HS / 2
TopSeller - Japan
8869EWJ	1x E5-2603 v4 6C 1.7GHz 15MB 1866MHz 85W	1x 8GB*	M1215	4x 3.5" HS / 4	Open bay	4x GbE	2 / 4^	Option	None	1x 550W HS / 2
8869EXJ	1x E5-2603 v4 6C 1.7GHz 15MB 1866MHz 85W	1x 8GB*	M5210 1GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option	Included	1x 550W HS / 2
8869EYJ	1x E5-2609 v4 8C 1.7GHz 20MB 1866MHz 85W	1x 8GB*	M5210 1GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option	Included	1x 550W HS / 2
8869EZJ	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 8GB*	M5210 1GB (F)	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Option	Included	1x 550W HS / 2
TopSeller - Australia and New Zealand
886916F**	1x E5-2620 v4 8C 2.1GHz 20MB 2133MHz 85W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Multi-burner	Included	1x 750W HS / 2
886916G**	1x E5-2640 v4 10C 2.4GHz 25MB 2133MHz 90W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Multi-burner	Included	1x 750W HS / 2
886916H**	1x E5-2650 v4 12C 2.2GHz 30MB 2400MHz 105W	1x 16GB	M5210	4x 2.5" HS / 8	Open bay	4x GbE	2 / 4^	Multi-burner	Included	1x 750W HS / 2

# Processor detail: Processor quantity and model, cores, core speed, cache, memory speed, and thermal design power (TDP).
§ The power supplies are 80 PLUS Platinum certified.
* 8 GB 1Rx4 memory DIMM (46W0825).
† An optional optical drive requires the front IO cage Standard (00MV367) or Advanced (00MV368).
‡ An optional LCD panel is included in the front IO cage Advanced (00MV368).
^ Two I/O slots standard: The onboard PCIe 3.0 x8 slot 4 and low profile PCIe 3.0 x16 slot 1 on the Riser Card 1 (feature code A5AG).
** The model ships with the SD Media Adapter (feature code A5TJ) installed and 1U cable management arm (feature code A5AL) included.

The TopSeller models of the System x3550 M5 that are listed in Table 3 are shipped with the following items:

Statement of Limited Warranty
Important Notices
Rack Installation Instructions
Documentation CD containing Installation and User's Guide
System x3550 M5 Slide Kit G4
One or two 2.8 m IEC 320-C13 to C14 rack power cords (matches the quantity of power supplies)

Note: Cable Management Arm (CMA) is not included (see table footnotes for exceptions, if any); see Rack installation for ordering information.

Processors

The System x3550 M5 supports up to two processors of the Intel Xeon processor E5-2600 v4 product family. The following table lists the specifications of the processors for the System x3550 M5.

Table 4. CPU specifications (HT = Hyper-Threading, TB = Turbo Boost, VT = Virtualization Technology)
Processor model	Core frequency (Base / TB Max)	Number of cores / threads	Cache	Max DDR4 frequency	QPI speed	TDP	HT	TB	VT-x	VT-d
E5-2603 v4	1.7 GHz	6 / 6	15 MB	1866 MHz	6.4 GT/s	85 W	No	No	Yes	Yes
E5-2608L v4	1.6 GHz	8 / 16	20 MB	1866 MHz	6.4 GT/s	50 W	Yes	No	Yes	Yes
E5-2609 v4	1.7 GHz	8 / 8	20 MB	1866 MHz	6.4 GT/s	85 W	No	No	Yes	Yes
E5-2618L v4	2.2 / 3.2 GHz	10 / 20	25 MB	2133 MHz	8.0 GT/s	75 W	Yes	Yes	Yes	Yes
E5-2620 v4	2.1 / 3 GHz	8 / 16	20 MB	2133 MHz	8.0 GT/s	85 W	Yes	Yes	Yes	Yes
E5-2623 v4	2.6 / 3.2 GHz	4 / 8	10 MB	2133 MHz	8.0 GT/s	85 W	Yes	Yes	Yes	Yes
E5-2628L v4	1.9 / 2.4 GHz	12 / 24	30 MB	2133 MHz	8.0 GT/s	75 W	Yes	Yes	Yes	Yes
E5-2630 v4	2.2 / 3.1 GHz	10 / 20	25 MB	2133 MHz	8.0 GT/s	85 W	Yes	Yes	Yes	Yes
E5-2630L v4	1.8 / 2.9 GHz	10 / 20	25 MB	2133 MHz	8.0 GT/s	55 W	Yes	Yes	Yes	Yes
E5-2637 v4	3.5 / 3.7 GHz	4 / 8	15 MB	2400 MHz	9.6 GT/s	135 W	Yes	Yes	Yes	Yes
E5-2640 v4	2.4 / 3.4 GHz	10 / 20	25 MB	2133 MHz	8.0 GT/s	90 W	Yes	Yes	Yes	Yes
E5-2643 v4	3.4 / 3.7 GHz	6 / 12	20 MB	2400 MHz	9.6 GT/s	135 W	Yes	Yes	Yes	Yes
E5-2648L v4	1.8 / 2.5 GHz	14 / 28	35 MB	2400 MHz	9.6 GT/s	75 W	Yes	Yes	Yes	Yes
E5-2650 v4	2.2 / 2.9 GHz	12 / 24	30 MB	2400 MHz	9.6 GT/s	105 W	Yes	Yes	Yes	Yes
E5-2650L v4	1.7 / 2.5 GHz	14 / 28	35 MB	2400 MHz	9.6 GT/s	65 W	Yes	Yes	Yes	Yes
E5-2658 v4	2.3 / 2.8 GHz	14 / 28	35 MB	2400 MHz	9.6 GT/s	105 W	Yes	Yes	Yes	Yes
E5-2660 v4	2 / 3.2 GHz	14 / 28	35 MB	2400 MHz	9.6 GT/s	105 W	Yes	Yes	Yes	Yes
E5-2667 v4	3.2 / 3.6 GHz	8 / 16	25 MB	2400 MHz	9.6 GT/s	135 W	Yes	Yes	Yes	Yes
E5-2680 v4	2.4 / 3.3 GHz	14 / 28	35 MB	2400 MHz	9.6 GT/s	120 W	Yes	Yes	Yes	Yes
E5-2683 v4	2.1 / 3 GHz	16 / 32	40 MB	2400 MHz	9.6 GT/s	120 W	Yes	Yes	Yes	Yes
E5-2690 v4	2.6 / 3.5 GHz	14 / 28	35 MB	2400 MHz	9.6 GT/s	135 W	Yes	Yes	Yes	Yes
E5-2695 v4	2.1 / 3.3 GHz	18 / 36	45 MB	2400 MHz	9.6 GT/s	120 W	Yes	Yes	Yes	Yes
E5-2697 v4	2.3 / 3.6 GHz	18 / 36	45 MB	2400 MHz	9.6 GT/s	145 W	Yes	Yes	Yes	Yes
E5-2697A v4	2.6 / 3.6 GHz	16 / 32	40 MB	2400 MHz	9.6 GT/s	145 W	Yes	Yes	Yes	Yes
E5-2698 v4	2.2 / 3.6 GHz	20 / 40	50 MB	2400 MHz	9.6 GT/s	135 W	Yes	Yes	Yes	Yes
E5-2699 v4	2.2 / 3.6 GHz	22 / 44	55 MB	2400 MHz	9.6 GT/s	145 W	Yes	Yes	Yes	Yes

For System x3550 M5 server models that come standard with one processor, the second processor can be ordered, if required (see the following table for ordering information). The second processor must be of the same model as the first processor. The second processor option includes two system fans.

Table 5. Processor options
Description	Part number	Feature codes*
Intel Xeon Processor E5-2603 v4 6C 1.7GHz 15MB Cache 1866MHz 85W	00YE893	ATLT / ATMH
Intel Xeon Processor E5-2608L v4 8C 1.6GHz 20MB Cache 1866MHz 50W	00YJ695	ATMC / ATN3
Intel Xeon Processor E5-2609 v4 8C 1.7GHz 20MB Cache 1866MHz 85W	00YE894	ATLU / ATMJ
Intel Xeon Processor E5-2618L v4 10C 2.2GHz 25MB Cache 2133MHz 75W	00YJ696	ATMD / ATN4
Intel Xeon Processor E5-2620 v4 8C 2.1GHz 20MB Cache 2133MHz 85W	00YE895	ATLV / ATMK
Intel Xeon Processor E5-2623 v4 4C 2.6GHz 10MB Cache 2133MHz 85W	00YJ694	ATMB / ATN2
Intel Xeon Processor E5-2628L v4 12C 1.9GHz 30MB Cache 2133MHz 75W	00YJ697	ATME / ATN5
Intel Xeon Processor E5-2630 v4 10C 2.2GHz 25MB Cache 2133MHz 85W	00YE896	ATLW / ATML
Intel Xeon Processor E5-2630L v4 10C 1.8GHz 25MB Cache 2133MHz 55W	00YJ693	ATMA / ATN1
Intel Xeon Processor E5-2637 v4 4C 3.5GHz 15MB Cache 2400MHz 135W	00YJ692	ATM9 / ATN0
Intel Xeon Processor E5-2640 v4 10C 2.4GHz 25MB Cache 2133MHz 90W	00YE897	ATLX / ATMM
Intel Xeon Processor E5-2643 v4 6C 3.4GHz 20MB Cache 2400MHz 135W	00YJ691	ATM8 / ATMZ
Intel Xeon Processor E5-2648L v4 14C 1.8GHz 35MB Cache 2400MHz 75W	00YJ698	ATMF / ATN6
Intel Xeon Processor E5-2650 v4 12C 2.2GHz 30MB Cache 2400MHz 105W	00YE898	ATLY / ATMN
Intel Xeon Processor E5-2650L v4 14C 1.7GHz 35MB Cache 2400MHz 65W	00YJ690	ATM7 / ATMY
Intel Xeon Processor E5-2658 v4 14C 2.3GHz 35MB Cache 2400MHz 105W	00YJ699	ATMG / ATN7
Intel Xeon Processor E5-2660 v4 14C 2.0GHz 35MB Cache 2400MHz 105W	00YJ101	ATM1 / ATMR
Intel Xeon Processor E5-2667 v4 8C 3.2GHz 25MB Cache 2400MHz 135W	00YJ102	ATM2 / ATMS
Intel Xeon Processor E5-2680 v4 14C 2.4GHz 35MB Cache 2400MHz 120W	00YJ686	ATM3 / ATMU
Intel Xeon Processor E5-2683 v4 16C 2.1GHz 40MB Cache 2400MHz 120W	00YJ689	ATM6 / ATMX
Intel Xeon Processor E5-2690 v4 14C 2.6GHz 35MB Cache 2400MHz 135W	00YE899	ATLZ / ATMP
Intel Xeon Processor E5-2695 v4 18C 2.1GHz 45MB Cache 2400MHz 120W	00YJ688	ATM5 / ATMW
Intel Xeon Processor E5-2697 v4 18C 2.3GHz 45MB Cache 2400MHz 145W	00YJ103	ATLS / ATMT
Intel Xeon Processor E5-2697A v4 16C 2.6GHz 40MB Cache 2400MHz 145W	01GT187	AUDX / AUDZ
Intel Xeon Processor E5-2698 v4 20C 2.2GHz 50MB Cache 2400MHz 135W	00YJ687	ATM4 / ATMV
Intel Xeon Processor E5-2699 v4 22C 2.2GHz 55MB Cache 2400MHz 145W	00YJ100	ATM0 / ATMQ

* The first feature code is for the first processor; the second feature code is for the second processor.

Memory

The System x3550 M5 supports TruDDR4 memory. TruDDR4 memory uses the highest-quality components sourced from Tier 1 DRAM suppliers and only memory that meets strict requirements is selected. It is compatibility tested and tuned on every System x server to maximize performance and reliability.

TruDDR4 memory has a unique signature programmed into the DIMM, which enables System x servers to verify whether the memory installed is qualified and supported. Because TruDDR4 memory is authenticated, certain extended memory performance features can be enabled to extend performance over industry standards. From a service and support standpoint, System x memory automatically assumes the system's warranty, and service and support provided worldwide.

The System x3550 M5 server supports up to 12 DIMMs when one processor is installed and up to 24 DIMMs when two processors are installed. Each processor has four memory channels, and there are three DIMMs per channel.

The following rules apply when selecting the memory configuration:

The server supports RDIMMs and LRDIMMs.
Mixing different types of memory (RDIMMs and LRDIMMs) is not supported.
All DIMMs in the server operate at the same speed, which is determined as the lowest value of:
- Memory speed that is supported by the specific processor.
- Memory speed for selected quantity of DIMMs per channel.

The following memory protection technologies are supported:

ECC
Chipkill (for x4-based memory DIMMs)
Memory mirroring
Memory rank sparing

Chipkill works only in independent channel mode (the default operational mode) and supports only x4-based memory DIMMs.

If memory mirroring is used, then DIMMs must be installed in pairs (a minimum of one pair per each processor), and both DIMMs in a pair must be identical in type and size.

If memory rank sparing is used, then a minimum of one quad-rank DIMM or two single-rank or dual-rank DIMMs must be installed per populated channel (the DIMMs do not need being identical). In rank sparing mode, one rank of a DIMM in each populated channel is reserved as spare memory. The size of a rank varies depending on the DIMMs installed.

Chipkill, memory mirroring, and memory rank sparing modes are mutually exclusive. Only one operational memory mode can be enabled on a server, and it is a system-wide setting.

System x engineering tested and validated system designs that support memory speeds beyond Intel memory specifications, which provides benefits for workloads that require memory speed and density.

System x TruDDR4 memory is fully supported up to the speeds that are shown in the following table. Table cells highlighted with a gray background indicate when the DIMMs are allowed to operate at a higher speed than Intel specifications define.

Table 6. System x3550 M5 maximum memory speeds and capacities
DIMMs per channel	RDIMM		LR-DIMM
DIMMs per channel	Memory bus speed	Maximum capacity*	Memory bus speed	Maximum capacity*
1 DPC	2400 MHz	256 GB (8x 32 GB)	2400 MHz	512 GB (8x 64 GB)
2 DPC	2400 MHz	512 GB (16x 32 GB)	2400 MHz	1,024 GB (16x 64 GB)
3 DPC	1866 MHz	768 GB (24x 32 GB)	2133 MHz	1,536 GB (24x 64 GB)

* Maximum memory capacity is achieved with two processors installed. With one processor, the maximum memory capacity is a half of what is shown.

The following table lists memory options available for the System x3550 M5 server.

Table 7. Memory options
Description	Part number	Feature code	Maximum supported*
RDIMMs - 2400 MHz
8GB TruDDR4 Memory (1Rx4, 1.2V) PC4-19200 CL17 2400MHz LP RDIMM	46W0821	ATC8	12 / 24
8GB TruDDR4 Memory (2Rx8, 1.2V) PC4-19200 CL17 2400MHz LP RDIMM	46W0825	ATC9	12 / 24
16GB TruDDR4 Memory (2Rx4, 1.2V) PC4-19200 CL17 2400MHz LP RDIMM	46W0829	ATCA	12 / 24
32GB TruDDR4 Memory (2Rx4, 1.2V) PC4-19200 CL17 2400MHz LP RDIMM	46W0833	ATCB	12 / 24
LRDIMMs - 2400 MHz
64GB TruDDR4 Memory (4Rx4, 1.2V) PC4-19200 PC4 2400MHz LP LRDIMM	46W0841	ATGG	12 / 24

* One processor / two processors

Internal storage

The System x3550 M5 server supports the following internal drive bay configurations:

4x 2.5-inch SAS/SATA hot-swap drive bay server models that can be upgraded to 8x 2.5-inch SAS/SATA hot-swap drive bays
10x 2.5-inch SAS/SATA hot-swap drive bay server models that can be upgraded to the following drive bay configurations:
1. 12x 2.5-inch SAS/SATA hot-swap drive bays (10x front drive bays and 2x rear drive bays)
2. 8x 2.5-inch SAS/SATA hot-swap + 2x 2.5-inch PCIe SSD non-hot-swap drive bays
4x 3.5-inch SAS/SATA hot-swap drive bay server models

The following figure shows the SAS/SATA drive bay configurations.

Figure 10. SAS/SATA drive bay configurations

The following figure shows the SAS/SATA and PCIe drive bay configurations.

SAS/SATA and PCIe drive bay configurations
Figure 11. SAS/SATA and PCIe drive bay configurations

4x 3.5-inch drive bay models of the System x3550 M5 have one optical drive bay. For models with up to 8x 2.5-inch drive bays, the optional Front IO cage Standard or Advanced provides one optical drive bay, 2x USB 2.0 ports, and 1x DB-15 video port. In addition, the Front IO cage Advanced option includes a light path LCD panel.

The Front IO cage Standard and Advanced options are listed in the following table.

Table 8. Front IO cage options
Description	Part number	Feature code	Maximum supported
System x3550 M5 front IO cage Standard	00MV367	ATLJ	1
System x3550 M5 front IO cage Advanced	00MV368	ATLK	1

The following table shows the internal storage options available for the System x3550 M5 server.

Table 9. Internal storage options
Description	Part number	Feature code	Maximum supported
Base drive kits
System x3550 M5 4x 2.5" HS HDD Kit	None*	A59W	1
System x3550 M5 4x 3.5" HS HDD Kit	None*	A5A4	1
System x3550 M5 10x 2.5" HS HDD Kit	None*	A5A0	1
Upgrade drive kits (require the base drive kit)
System x3550 M5 2x 2.5" HS HDD Rear Kit	00KA058	A5A2	1
System x3550 M5 4x 2.5" HS HDD Kit PLUS	00KA055	A59X	1
System x3550 M5 NVMe PCIe SSD Upgrade Kit	00YL497	AU05	1

* Available in standard or CTO models, or both.

Base drive kits are always factory installed in either standard or custom (CTO) models. Upgrade drive kits can be factory installed or can be installed as a field upgrade for supported standard or custom models.

The following table lists possible internal storage configurations.

Table 10. Internal storage configurations (FC=Feature Code, PN=Part Number)
Drive bay configuration	Storage controller*	Drive kits required
4x 2.5-inch SAS/SATA hot-swap (front)	1x RAID or HBA	Factory installed: 1x System x3550 M5 4x 2.5" HS HDD Kit (FC A59W)
8x 2.5-inch SAS/SATA hot-swap (front)	1x RAID or HBA	Factory installed: 1x System x3550 M5 4x 2.5" HS HDD Kit (FC A59W); and 1x System x3550 M5 4x 2.5" HS HDD Kit PLUS (FC A59X) Field upgrade for the 4-drive bay model: 1x System x3550 M5 4x 2.5" HS HDD Kit PLUS (PN 00KA055)
8x 2.5-inch SAS/SATA hot-swap (front) + 2x 2.5-inch PCIe SSD non-hot-swap (front)	1x RAID or HBA 1x PCIe Extender#	Factory installed: 1x System x3550 M5 10x 2.5" HS HDD Kit (FC A5A0); and 1x System x3550 M5 NVMe PCIe SSD Upgrade Kit (FC AU05) Field upgrade for the 10-drive bay model: 1x System x3550 M5 NVMe PCIe SSD Upgrade Kit (PN 00YL497)
10x 2.5-inch SAS/SATA hot-swap (front)	1x RAID or HBA	Factory installed: 1x System x3550 M5 10x 2.5" HS HDD Kit (FC A5A0)
10x 2.5-inch (front) + 2x 2.5-inch (rear) SAS/SATA hot-swap	1x RAID or HBA	Factory installed: 1x System x3550 M5 10x 2.5" HS HDD Kit (FC A5A0); and 1x System x3550 M5 2x 2.5" HS HDD Rear Kit (FC A5A2) Field upgrade for the 10-drive bay model: 1x System x3550 M5 2x 2.5" HS HDD Rear Kit (PN 00KA058)
4x 3.5-inch SAS/SATA hot-swap	1x RAID or HBA	Factory installed: 1x System x3550 M5 4x 3.5" HS HDD Kit (FC A5A4)

* In the Storage controller column, RAID or HBA means any supported controller for internal storage: M1215, M5210, or N2215.
# PCIe Extender occupies a PCIe slot and is included in the NVMe PCIe SSD Upgrade Kit.
** Requires the selection of a PCIe riser card 2. If 145 W processors (E5-2697 v4 and E5-2699 v4) are selected, the ambient temperature cannot exceed 35 °C (95 °F).

HDD Rear Kit configuration notes:

The HDD Rear Kit (00KA058) is supported only for models with 10x 2.5-inch drive bays; the HDD Rear Kit is connected to the SAS expander on the 10-drive backplane.
The HDD Rear Kit is installed in place of the PCIe slots 1 and 2 (see I/O expansion), and it includes a special riser that provides PCIe 3.0 x16 slot 3. No other riser cards can be used with the HDD Rear Kit.
The HDD Rear Kit is not supported in the configurations with NVMe PCIe SSDs.
145 W and 135 W processors cannot be used when the HDD Rear Kit is installed.

Controllers for internal storage

The following table lists the storage controllers and the additional options used for the internal storage of the System x3550 M5 server. The internal storage controllers are installed into a dedicated PCIe slot 4.

Table 11. RAID controllers and HBAs for internal storage
Description	Part number	Feature code	Maximum supported	I/O slots supported
12 Gb SAS/SATA controllers
ServeRAID M5210 SAS/SATA Controller	46C9110	A3YZ	1	4
ServeRAID M1215 SAS/SATA Controller	46C9114	A45W	1	4
N2215 SAS/SATA HBA	47C8675	A3YY	1	4
Hardware upgrades for the M5210 (per one controller)
ServeRAID M5200 Series 1GB Cache/RAID 5 Upgrade	47C8656	A3Z0	1	-
ServeRAID M5200 Series 1GB Flash/RAID 5 Upgrade	47C8660	A3Z1	1	-
ServeRAID M5200 Series 2GB Flash/RAID 5 Upgrade	47C8664	A3Z2	1	-
ServeRAID M5200 Series 4GB Flash/RAID 5 Upgrade	47C8668	A3Z3	1	-
Features on Demand upgrades for the M5210 (system-wide)**
ServeRAID M5200 Series Zero Cache/RAID 5 Upgrade	47C8708	A3Z6	1	-
ServeRAID M5200 Series RAID 6 Upgrade	47C8706	A3Z5	1*	-
ServeRAID M5200 Series Performance Accelerator	47C8710	A3Z7	1*	-
ServeRAID M5200 Series SSD Caching Enabler	47C8712	A3Z8	1*	-
Features on Demand upgrades for the M1215 (system-wide)***
ServeRAID M1200 Zero Cache/RAID 5 Upgrade	00AE930	A5H5	1	-
PCIe extenders (for NVMe PCIe SSDs)
System x NVMe PCIe SSD Extender Adapter	00ML997	AS95	1	2

* Requires cache memory upgrade (47C8656, 47C8660, 47C8664, or 47C8668).
** One FoD upgrade enables the feature on all ServeRAID M5200 Series adapters (M5210, M5225) installed in the server.
*** One FoD upgrade enables the feature on all ServeRAID M1200 Series adapters (M1215) installed in the server.

The following table summarizes features of supported storage controllers.

Table 12. Storage controller features and specifications summary
Feature	M1215	M5210	N2215
Part number	46C9114	46C9110	47C8675
Form factor	PCIe low profile	PCIe low profile	PCIe low profile
Controller chip	LSI SAS3008	LSI SAS3108	LSI SAS3008
Host interface	PCIe 3.0 x8	PCIe 3.0 x8	PCIe 3.0 x8
Port interface	12 Gbps SAS	12 Gbps SAS	12 Gbps SAS
Number of ports	8	8	8
Port connectors	2x Mini-SAS HD x4 (SFF-8643)	2x Mini-SAS HD x4 (SFF-8643)	2x Mini-SAS HD x4 (SFF-8643)
Drive interface	SAS, SATA	SAS, SATA	SAS, SATA
Drive type	HDD, SSD, SED	HDD, SSD, SED	HDD, SSD
Drive form factor	SFF, LFF	SFF, LFF	SFF, LFF
Maximum number of devices	32 (RAID); 64 (JBOD)	240	1024
RAID levels	0/1/10; Optional 5/50 (00AE930)	0/1/10; Optional 5/50 (RAID 5 FoD, 47C8708, or cache upgrades); Optional 6/60 (47C8706)	None
JBOD mode	Yes	Yes (without cache)	Yes
Cache	None	1 GB no backup (47C8656) 1 GB flash backup (47C8660) 2 GB flash backup (47C8664) 4 GB flash backup (47C8668)	None
SED support (SafeStore)	Yes (with RAID 5 FoD upgrade)	Yes (with RAID 5 FoD upgrade or any cache upgrade)	No
Performance Accelerator (FastPath)	No	Optional (47C8710)	No
SSD Caching (CacheCade Pro 2.0)	No	Optional (47C8712)	No

For more information, see the list of Product Guides in the RAID adapters category:
https://lenovopress.com/servers/options/raid

The following table lists supported combinations of the storage controllers and drive types for the System x3550 M5 drive bay configurations.

Table 13. Storage controllers, drive types, and internal drive bays
Drive bays	Storage Controller	Drive type
Drive bays	Storage Controller	SAS HDD	NL SAS HDD	NL SATA HDD	SAS SED	SAS SSD	SATA SSD	PCIe SSD
Front drive bays
4/8/10x 2.5-inch SAS/SATA hot-swap (front)	M1215	Yes	Yes	Yes	Yes*	Yes	Yes	No
	M5210	Yes	Yes	Yes	Yes**	Yes	Yes	No
	N2215	Yes	Yes	Yes	No	Yes	Yes	No
4x 3.5-inch SAS/SATA hot-swap (front)	M1215	Yes	Yes	Yes	No	No	Yes	No
	M5210	Yes	Yes	Yes	No	No	Yes	No
	N2215	Yes	Yes	Yes	No	No	Yes	No
2x 2.5-inch PCIe SSD non-hot-swap (front)	PCIe SSD Extender	No	No	No	No	No	No	Yes
Rear drive bays
2x 2.5-inch SAS/SATA hot-swap (rear)#	M1215	Yes	Yes	Yes	Yes*	Yes	Yes	No
	M5210	Yes	Yes	Yes	Yes**	Yes	Yes	No
	N2215	Yes	Yes	Yes	No	Yes	Yes	No

# Rear drives are supported only for 10x 2.5" front drive bay models and connected to the SAS expander on the 10-drive backplane.
* SEDs are supported with the RAID 5 FoD upgrade (00AE930).
** SEDs are supported with the RAID 5 FoD upgrade (47C8708) or any cache upgrade (47C8656, 47C8660, 47C8664, 47C8668).

Drives for internal storage

The following tables list currently available drive options for internal storage of the System x3550 M5 server.

Table 14. Internal drive options: 2.5-inch hot-swap drives
Description	Part number	Feature code	Maximum supported
2.5-inch hot-swap HDDs - 12 Gbps SAS
300GB 10K 12Gbps SAS 2.5" G3HS HDD	00WG685	AT89	12
300GB 15K 12Gbps SAS 2.5" G3HS HDD	00WG660	AT84	12
300GB 15K 12Gbps SAS 2.5" G3HS 512e HDD	00NA221	ASBB	12
600GB 10K 12Gbps SAS 2.5" G3HS HDD	00WG690	AT8A	12
600GB 10K 12Gbps SAS 2.5" G3HS 512e HDD	00NA241	ASBF	12
600GB 15K 12Gbps SAS 2.5" G3HS HDD	00WG665	AT85	12
600GB 15K 12Gbps SAS 2.5" G3HS 512e HDD	00NA231	ASBD	12
900GB 10K 12Gbps SAS 2.5" G3HS HDD	00WG695	AT8B	12
900GB 10K 12Gbps SAS 2.5" G3HS 512e HDD	00NA251	ASBH	12
1.2TB 10K 12Gbps SAS 2.5" G3HS HDD	00WG700	AT8C	12
1.2TB 10K 12Gbps SAS 2.5" G3HS 512e HDD	00NA261	ASBK	12
1.8TB 10K 12Gbps SAS 2.5" G3HS 512e HDD	00NA271	ASBM	12
2.5-inch hot-swap HDDs - 12 Gbps NL SAS
1TB 7.2K 12Gbps NL SAS 2.5'' G3HS HDD	00NA491	AT7Z	12
2TB 7.2K 12Gbps NL SAS 2.5'' G3HS HDD	00NA496	AT80	12
2.5-inch hot-swap HDDs - 6 Gbps NL SAS
500GB 7.2K 6Gbps NL SAS 2.5" G3HS HDD	00AJ121	A4TT	12
2.5-inch hot-swap HDDs - 6 Gbps NL SATA
500GB 7.2K 6Gbps NL SATA 2.5" G3HS HDD	00AJ136	A4TW	12
1TB 7.2K 6Gbps NL SATA 2.5" G3HS HDD	00AJ141	A4TX	12
2TB 7.2K 6Gbps NL SATA 2.5'' G3HS 512e HDD	00NA526	AT81	12
2.5-inch hot-swap SEDs - 12 Gbps SAS
300GB 10K 12Gbps SAS 2.5" G3HS SED	00WG705	AT8D	12
600GB 10K 12Gbps SAS 2.5" G3HS SED	00WG710	AT8E	12
900GB 10K 12Gbps SAS 2.5" G3HS SED	00WG715	AT8F	12
1.2TB 10K 12Gbps SAS 2.5" G3HS SED	00WG720	AT8G	12
1.2TB 10K 12Gbps SAS 2.5" G3HS 512e SED	00NA301	ASBT	12
2.5-inch hot-swap SSDs - Enterprise 12 Gbps SAS
200GB 12G SAS 2.5" MLC G3HS Enterprise SSD	00FN379	AS7C	12
400GB 12G SAS 2.5" MLC G3HS Enterprise SSD	00FN389	AS7E	12
800GB 12G SAS 2.5" MLC G3HS Enterprise SSD	00FN399	AS7G	12
1.6TB 12G SAS 2.5" MLC G3HS Enterprise SSD	00FN409	AS7J	12
2.5-inch hot-swap SSDs - Enterprise Mainstream 12 Gbps SAS
400GB Enterprise Mainstream 12Gb SAS G3HS 2.5" SSD	00YC460	AT9M	12
800GB Enterprise Mainstream 12Gb SAS G3HS 2.5" SSD	00YC465	AT9N	12
1.6TB Enterprise Mainstream 12Gb SAS G3HS 2.5" SSD	00YC470	AT9P	12
2.5-inch hot-swap SSDs - Enterprise 6 Gbps SAS
200GB SAS 2.5" MLC G3HS Enterprise SSD	00AJ207	A4UA	12
400GB SAS 2.5" MLC G3HS Enterprise SSD	00AJ212	A4UB	12
800GB SAS 2.5" MLC G3HS Enterprise SSD	00AJ217	A4UC	12
2.5-inch hot-swap SSDs - Enterprise Performance 6 Gbps SATA
Intel S3710 200GB Enterprise Performance SATA G3HS 2.5" SSD	00YC320	AT9C	12
Intel S3710 400GB Enterprise Performance SATA G3HS 2.5" SSD	00YC325	AT9D	12
Intel S3710 800GB Enterprise Performance SATA G3HS 2.5" SSD	00YC330	AT9E	12
2.5-inch hot-swap SSDs - Enterprise Mainstream 6 Gbps SATA
Intel S3610 480GB Enterprise Mainstream SATA G3HS 2.5" SSD	00YK212	AU3C	12
Intel S3610 800GB Enterprise Mainstream SATA G3HS 2.5" SSD	00YK217	AU3D	12
Intel S3610 1.2TB Enterprise Mainstream SATA G3HS 2.5" SSD	00YK222	AU3E	12
Intel S3610 1.6TB Enterprise Mainstream SATA G3HS 2.5" SSD	00YK227	AU3F	12
2.5-inch non-hot-swap SSDs - Enterprise Performance PCIe 3.0 x4*
Intel P3700 400GB NVMe 2.5" G3HS Enterprise Performance PCIe SSD	00YA818	AT7V	2
Intel P3700 800GB NVMe 2.5" G3HS Enterprise Performance PCIe SSD	00YA821	AT7W	2
Intel P3700 1.6TB NVMe 2.5" G3HS Enterprise Performance PCIe SSD	00YA824	AT7X	2
Intel P3700 2.0TB NVMe 2.5" G3HS Enterprise Performance PCIe SSD	00YA827	AT7Y	2
2.5-inch hot-swap SSDs - Enterprise Entry 6 Gbps SATA
120GB Enterprise Entry SATA G3HS 2.5" SSD	00YC385	AT8R	12
240GB Enterprise Entry SATA G3HS 2.5" SSD	00YC390	AT8S	12
480GB Enterprise Entry SATA G3HS 2.5" SSD	00YC395	AT8T	12
960GB Enterprise Entry SATA G3HS 2.5" SSD	00YC400	AT8U	12
Intel S3510 120GB Enterprise Entry SATA G3HS 2.5" SSD	00WG620	AT93	12
Intel S3510 240GB Enterprise Entry SATA G3HS 2.5" SSD	00WG625	AT94	12
Intel S3510 480GB Enterprise Entry SATA G3HS 2.5" SSD	00WG630	AT95	12
Intel S3510 800GB Enterprise Entry SATA G3HS 2.5" SSD	00WG635	AT96	12
2.5-inch hot-swap SSDs - Enterprise Value 6 Gbps SATA
120GB SATA 2.5" MLC G3HS Enterprise Value SSD	00AJ395	A577	12
240GB SATA 2.5" MLC G3HS Enterprise Value SSD	00AJ400	A578	12
480GB SATA 2.5" MLC G3HS Enterprise Value SSD	00AJ405	A579	12
800GB SATA 2.5" MLC G3HS Enterprise Value SSD	00AJ410	A57A	12
2.5-inch non-hot-swap SSDs - Enterprise Value PCIe 3.0 x4*
Intel P3600 400GB NVMe 2.5" G3HS Enterprise Value PCIe SSD	90Y3227	A5RW	2
Intel P3600 800GB NVMe 2.5" G3HS Enterprise Value PCIe SSD	90Y3230	A5RX	2
Intel P3600 1.6TB NVMe 2.5" G3HS Enterprise Value PCIe SSD	90Y3233	A5RY	2
Intel P3600 2.0TB NVMe 2.5" G3HS Enterprise Value PCIe SSD	90Y3236	A5RZ	2
2.5-inch hot-swap SSDs - Enterprise Capacity 6 Gbps SAS
3.84TB 6Gb SAS Enterprise Capacity G3HS MLC SSD	00NA671	ASW6	12

* The NVMe PCIe SSDs are non-hot-swap when used in the System x3550 M5.

Table 15. Internal drive options: 3.5-inch hot-swap drives
Description	Part number	Feature code	Maximum supported
3.5-inch hot-swap HDDs - 12Gbps SAS
300GB 15K 12Gbps SAS 3.5" G2HS HDD	00WG675	AT87	4
600GB 15K 12Gbps SAS 3.5" G2HS HDD	00WG680	AT88	4
3.5-inch hot-swap HDDs - 12 Gbps NL SAS
1TB 7.2K 12Gbps NL SAS 3.5" G2HS HDD	00YL702	ATYM	4
2TB 7.2K 12Gbps NL SAS 3.5" G2HS HDD	00YK000	ATYL	4
2TB 7.2K 12Gbps NL SAS 3.5" G2HS 512e HDD	00FN188	A5VP	4
4TB 7.2K 12Gbps NL SAS 3.5" G2HS HDD	00YK005	ATYN	4
4TB 7.2K 12Gbps NL SAS 3.5" G2HS 512e HDD	00FN208	A5VQ	4
6TB 7.2K 12Gbps NL SAS 3.5" G2HS 512e HDD	00FN228	A5VR	4
8TB 7.2K 12Gbps NL SAS 3.5" G2HS 512e HDD	00WH121	ATRS	4
10TB 7.2K 12Gbps NL SAS 3.5" G2HS 512e HDD	00YK336	AU7R	4
3.5-inch hot-swap HDDs - 6 Gbps NL SAS
1TB 7.2K 6Gbps NL SAS 3.5" G2HS HDD	90Y8567	A26M	4
2TB 7.2K 6Gbps NL SAS 3.5" G2HS HDD	90Y8572	A2U0	4
3.5-inch hot-swap HDDs - 6 Gbps NL SATA
500GB 7.2K 6Gbps NL SATA 3.5" G2HS HDD	81Y9786	A22Y	4
1TB 7.2K 6Gbps NL SATA 3.5" G2HS HDD	81Y9790	A22P	4
2TB 7.2K 6Gbps NL SATA 3.5" G2HS HDD	81Y9794	A22T	4
2TB 7.2K 6Gbps NL SATA 3.5" G2HS 512e HDD	00FN113	A5VD	4
4TB 7.2K 6Gbps NL SATA 3.5" G2HS 512e HDD	00FN143	A5VH	4
6TB 7.2K 6Gbps NL SATA 3.5" G2HS 512e HDD	00FN173	A5VM	4
8TB 7.2K 6Gbps NL SATA 3.5" G2HS 512e HDD	00WH126	ATRT	4
10TB 7.2K 6Gbps NL SATA 3.5" G2HS 512e HDD	00YK341	AU7S	4
3.5-inch hot-swap SSDs - Enterprise Performance 6 Gbps SATA
Intel S3710 400GB Enterprise Performance SATA HS 3.5" SSD	00YC340	AT9G	4
Intel S3710 800GB Enterprise Performance SATA HS 3.5" SSD	00YC345	AT9H	4
3.5-inch hot-swap SSDs - Enterprise Mainstream 6 Gbps SATA
Intel S3610 480GB Enterprise Mainstream SATA HS 3.5" SSD	00YK237	AU3H	4
Intel S3610 800GB Enterprise Mainstream SATA HS 3.5" SSD	00YK242	AU3J	4
Intel S3610 1.2TB Enterprise Mainstream SATA HS 3.5" SSD	00YK247	AU3K	4
Intel S3610 1.6TB Enterprise Mainstream SATA HS 3.5" SSD	00YK252	AU3L	4
3.5-inch hot-swap SSDs - Enterprise Value 6 Gbps SATA
120GB SATA 3.5" MLC HS Enterprise Value SSD	00AJ435	A57F	4
480GB SATA 3.5" MLC HS Enterprise Value SSD	00AJ445	A57H	4
3.5-inch hot-swap SSDs - Enterprise Entry 6 Gbps SATA
960GB Enterprise Entry SATA HS 3.5" SSD	00YC420	AT8Y	4

Optical drives

The System x3550 M5 server supports the optical drive options listed in the following table.

Table 16. Optical drives
Description	Part number	Feature code	Maximum supported
Ultraslim 9.5mm SATA DVD-ROM	00AM066	A5KG	1
Ultraslim 9.5mm SATA Multi Burner	00AM067	A5KH	1

Ultraslim 9.5mm SATA DVD-ROM (part number 00AM066) supports the following media and speeds for reading:

CD-ROM 24X
CD-DA (DAE) 24X
CD-R 24X
CD-RW 24X
DVD-ROM 8X
DVD-R 8X
DVD+R 8X
DVD-R DL 6X
DVD+R DL 8X
DVD-RW 8X
DVD+RW 8X
DVD-RAM (4.7 GB) 5X

Ultraslim 9.5mm SATA Multi Burner (part number 00AM067) supports the same media and speeds for reading as DVD-ROM (part number 00AM066). This drive also supports the following media and speeds for writing:

CD-R 24X
CD-RW 4X
High-Speed CD-RW 10X
Ultra Speed CD-RW 24X
DVD-R 8X
DVD+R 8X
DVD-R DL 6X
DVD+R DL 6X
DVD-RW 6X
DVD+RW 8X
DVD-RAM 5X

Configuration notes:

Server models with 10x 2.5-inch drive bays on the front do not support an internal optical drive; a supported external optical drive can be used instead.
Server models with up to 8x 2.5-inch drive bays require the Front IO cage Standard (00MV367) or Advanced (00MV368) for optical drive support.

I/O expansion

The System x3550 M5 server supports up to four PCIe slots: one on the system planar that is dedicated for an internal storage controller and up to three with different riser cards installed into two riser sockets on the system planar (one riser socket supports the installation of one riser card).

The slot form factors are listed:

Slot 1: PCIe 3.0 x16 or ML2; low profile, half-length (not present if the HDD Rear Kit is installed)
Slot 2: PCIe 3.0 x16 or PCIe 3.0 x8; low profile or full-height, half-length (PCIe 3.0 x16 slot requires the second processor to be installed) (not present if the HDD Rear Kit is installed)
Slot 3: PCIe 3.0 x16 or PCIe 3.0 x8; low profile, half-length
Slot 4: PCIe 3.0 x8 (dedicated for an internal RAID controller)

The locations of the PCIe slots are shown in the following figure.

Figure 12. PCIe slot locations

Riser 1 supplies slot 1, and Riser 2 supplies slots 2 and 3. The slots that are available for use depend on the number of riser cards that are installed and whether the second processor is installed:

One or two processors and no riser cards: Slot 4 is available for use
One or two processors and one riser card in riser slot 1: Slots 1 and 4 are available for use
One processor and one PCIe x16 riser card in riser slot 2: Slots 3 and 4 are available for use
One processor and one PCIe x8 riser card in riser slot 2: Slots 2, 3 and 4 are available for use
One processor and two riser cards: Slots 1, 3 and 4 are available for use
Two processors and one riser card in riser slot 2: Slots 2, 3 and 4 are available for use
Two processors and two riser cards: All slots (1, 2, 3, and 4) are available for use

All standard models have one riser card (Riser 1) installed, which provides one low profile PCIe x16 Gen 3 slot (riser option part number 00KA061). You can replace or add riser cards with the riser card options that are listed in the following table (or configure these riser cards to be factory-integrated using CTO).

Table 17. PCI riser card options
Description	Part number	Feature code	Maximum supported
Riser 1 (supplies slots 1)
System x3550 M5 PCIe Riser 1 (1x LP x16 CPU0)	00KA061	A5AG	1
System x3550 M5 PCIe Riser 1 (1x ML2 x16 CPU0)	00KA063	A5AH	1
Riser 2 (supplies slots 2 and 3)
System x3550 M5 PCIe Riser 2, 1 CPU (2xLP, LP x8 CPU0 + LP x8 CPU0)	00KA062	A5AC	1
System x3550 M5 PCIe Riser 2, 1-2 CPU (FHHL x16 CPU1 + LP x16 CPU0)	None*	A5AD	1
System x3550 M5 PCIe Riser 2, 1 CPU (FHHL x8 CPU0 +LP x8 CPU0)	None*	A5AE	1
System x3550 M5 PCIe Riser 2, 1-2 CPU (LP x16 CPU1 + LP x16 CPU0)	00KA066	A5AF	1

* Only available via CTO or special bid.

Configuration notes:

The 1 CPU Riser 2 options (feature codes A5AC and A5AE) are supported only in configurations with one processor. If two processors are selected, these options cannot be used.
If the FHHL x16 Riser 2 option (feature code A5AD) is selected, the x16 Riser 1 option (feature code A5AG) cannot be used.
If both ML2 Riser 1 (feature code A5AH) and FHHL x8 or x16 Riser 2 option (feature code A5AE or A5AD) are selected, one of the following ML2 network adapters is allowed for selection:
- Broadcom NetXtreme II ML2 Dual Port 10GbaseT (part number 00D2026)
- Broadcom NetXtreme II ML2 Dual Port 10GbE SFP+ (part number 00D2028)
- Emulex VFA5 ML2 Dual Port 10GbE SFP+ Adapter (part number 00D1996)
- Intel X540 ML2 Dual Port 10GbaseT Adapter (part number 00D1994)
- Intel I350-T4 ML2 Quad Port GbE Adapter (part number 00D1998)
If the FHHL x8 or x16 Riser 2 options (feature codes A5AD and A5AE) are selected, the Mellanox ConnectX-3 Pro ML2 2x40GbE/FDR VPI Adapter (part number 00FP650) cannot be used.
The HDD Rear Kit (00KA058; see Internal storage) is installed in place of the PCIe slots 1 and 2; it includes a special riser that provides PCIe 3.0 x16 slot 3, and no other riser cards can be used.

Serial port

The COM Port Bracket, part number 00KA161, is used for mounting the external DB-9 serial port on the rear of the System x3550 M5. This option includes the bracket and the cable. The COM Port option is mounted in place of the PCIe slot 3, and only PCIe slots 1 and 2 remain available.

The following table lists the serial port option.

Table 18. Serial port
Description	Part number	Feature code	Maximum supported
COM Port Bracket	00KA161	A5AN	1

Network adapters

The System x3550 M5 supports four integrated Gigabit Ethernet ports. The integrated network interface controller (NIC) has the following features:

A Broadcom BCM5719 chip
Four Gigabit Ethernet ports
NIC Teaming (load balancing and failover)
Ethernet features:
- Compliant with 1 Gb Ethernet IEEE 802.3, 802.3u, and 802.3ab PHY specifications
- Integrated PHY for 10/100/1000 Mbps for multispeed, full, and half-duplex auto-negotiation
- Automatic MDI crossover
- IEEE 802.3x-compliant flow control support
- IEEE 1588 protocol and 802.1AS time synchronization implementation
- IEEE802.3az - Energy Efficient Ethernet (EEE)
I/O Virtualization features:
- I/O Virtualization support for VMware NetQueue and Microsoft virtual machine queue (VMQ)
- Function Level Reset (FLR)
- IEEE 802.1q Virtual Local Area Network (VLAN) tagging support
Stateless offload and performance features:
- TCP, IP, and User Datagram Protocol (UDP) checksum offload
- TCP segmentation offload (TCO)
- Large Send Offload (LSO)
- Receive Side Scaling (RSS) and Transmit Side Scaling (TSS)
- Message Signal Interrupt (MSI) and Message Signal Interrupt Extension (MSI-X) support
- Support for jumbo frames up to 9600 bytes

Optionally, the System x3550 M5 server supports ML2 adapters that are installed in the custom ML2 slot provided by the PCIe ML2 riser card (part number 00KA063). This slot supports adapters with either two or four 10 Gb ports or four Gigabit ports and supports direct connectivity to the IMM2.1 service processor for out-of-band systems management.

The following table lists additional supported network adapters.

Notes:

ML2 network adapters are supported in the ML2 slot 1 supplied by the ML2 Riser Card (part number 00KA063).
Unless otherwise specified in the table footnote for the specific adapter, PCIe network adapters are supported in low profile and full-high PCIe x8 and x16 slots supplied by the riser cards 1 and 2.

Table 19. Network adapters
Description	Part number	Feature code	Maximum supported	I/O slots supported
100 Gb Ethernet - PCIe
Mellanox ConnectX-4 2x100GbE/EDR IB QSFP28 VPI Adapter	00MM960	ATRP	3^	1, 2, 3†
40 Gb Ethernet - ML2
Mellanox ConnectX-3 Pro ML2 2x40GbE/FDR VPI Adapter	00FP650	A5RK	1*	1
40 Gb Ethernet - PCIe
Mellanox ConnectX-4 Lx 1x40GbE QSFP+ Adapter	00MM950	ATRN	3*	1, 2, 3
Mellanox ConnectX-3 2x40GbE / FDR IB VPI Adapter	00D9550	A3PN	3*	1, 2, 3
25 Gb Ethernet - ML2
Mellanox ConnectX-4 Lx ML2 1x25GbE SFP28 Adapter	00MN990	ATZR	1#	1
10 Gb Ethernet - ML2
Broadcom NetXtreme II ML2 Dual Port 10GbaseT	00D2026	A40S	1	1
Broadcom NetXtreme II ML2 Dual Port 10GbE SFP+	00D2028	A40T	1*	1
Emulex VFA5 ML2 Dual Port 10GbE SFP+ Adapter	00D1996	A40Q	1*	1
Emulex VFA5.2 ML2 Dual Port 10GbE SFP+ Adapter	00AG560	AT7U	1*	1
Emulex VFA5 ML2 FCoE/iSCSI License (FoD) (Upgrade for 00D1996 and 00AG560 - one per adapter)	00D8544	A4NZ	1	-
Intel X540 ML2 Dual Port 10GbaseT Adapter	00D1994	A40P	1	1
Intel X710-DA2 ML2 2x10GbE SFP+ Adapter	00JY940	ATRH	1*	1
25 Gb Ethernet - PCIe
Mellanox ConnectX-4 Lx 2x25GbE SFP28 Adapter	01GR250	AUAJ	3#	1, 2, 3
10 Gb Ethernet - PCIe
Broadcom NetXtreme 2x10GbE BaseT Adapter	44T1370	A5GZ	3	1, 2, 3
Broadcom NetXtreme Dual Port 10GbE SFP+ Adapter	94Y5180	A4Z6	3*	1, 2, 3
Emulex VFA5 2x10 GbE SFP+ PCIe Adapter	00JY820	A5UT	3*	1, 2, 3
Emulex VFA5.2 2x10 GbE SFP+ PCIe Adapter	00AG570	AT7S	3*	1, 2, 3
Emulex VFA5 FCoE/iSCSI SW for PCIe Adapter (FoD) (Upgrade for 00JY820 and 00AG570 - one per adapter)	00JY824	A5UV	3	-
Emulex VFA5 2x10 GbE SFP+ Adapter and FCoE/iSCSI SW	00JY830	A5UU	3*	1, 2, 3
Emulex VFA5.2 2x10 GbE SFP+ Adapter and FCoE/iSCSI SW	00AG580	AT7T	3*	1, 2, 3
Intel X520 Dual Port 10GbE SFP+ Adapter	49Y7960	A2EC	3*	1, 2, 3
Intel X540-T2 Dual Port 10GBaseT Adapter	49Y7970	A2ED	3	1, 2, 3
Intel X550-T2 Dual Port 10GBase-T Adapter	00MM860	ATPX	3	1, 2, 3
Intel X710-DA2 2x10GbE SFP+ Adapter	01DA900	AU2Y	3*	1, 2, 3
Mellanox ConnectX-3 10 GbE Adapter	00D9690	A3PM	3*	1, 2, 3
QLogic 8200 Dual Port 10GbE SFP+ VFA	90Y4600	A3MR	3*	1, 2, 3
QLogic 8200 VFA FCoE/iSCSI License (FoD for 90Y4600 - one per adapter)	00Y5624	A3MT	3	-
Solarflare SFN7122F 2x10GbE SFP+ Flareon Ultra	47C9977	A522	3*	1, 2, 3
1 Gb Ethernet - ML2
Intel I350-T4 ML2 Quad Port GbE Adapter	00D1998	A40R	1	1
1 Gb Ethernet - PCIe
Broadcom NetXtreme 2xGbE BaseT Adapter	42C1780	2995	3	1, 2, 3
Broadcom NetXtreme I Dual Port GbE Adapter	90Y9370	A2V4	3	1, 2, 3
Broadcom NetXtreme I Quad Port GbE Adapter	90Y9352	A2V3	3	1, 2, 3
Intel I350-F1 1xGbE Fiber Adapter	00AG500	A56K	3	1, 2, 3
Intel I350-T2 2xGbE BaseT Adapter	00AG510	A56L	3	1, 2, 3
Intel I350-T4 4xGbE BaseT Adapter	00AG520	A56M	3	1, 2, 3
40 GbE QSFP+ transceivers and DAC cables for 40 GbE QSFP+ adapters
Lenovo 40GBASE-SR4 QSFP+ Transceiver	49Y7884	A1DR	Port qty**	-
Lenovo 1m Passive QSFP+ DAC Cable	49Y7890	A1DP	Port qty**	-
Lenovo 3m Passive QSFP+ DAC Cable	49Y7891	A1DQ	Port qty**	-
10 GbE SFP+ transceivers and DAC cables for 10 GbE SFP+ adapters
Lenovo 10GBASE-SR SFP+ Transceiver	46C3447	5053	Port qty**	-
Brocade 10Gb SFP+ SR Optical Transceiver	49Y4216	0069	Port qty**	-
QLogic 10Gb SFP+ SR Optical Transceiver	49Y4218	0064	Port qty**	-
Lenovo 0.5m Passive SFP+ DAC Cable	00D6288	A3RG	Port qty**	-
Lenovo 1m Passive SFP+ DAC Cable	90Y9427	A1PH	Port qty**	-
Lenovo 1.5m Passive SFP+ DAC Cable	00AY764	A51N	Port qty**	-
Lenovo 2m Passive SFP+ DAC Cable	00AY765	A51P	Port qty**	-
Lenovo 3m Passive SFP+ DAC Cable	90Y9430	A1PJ	Port qty**	-
Lenovo 5m Passive SFP+ DAC Cable	90Y9433	A1PK	Port qty**	-
Lenovo 7m Passive SFP+ DAC Cable	00D6151	A3RH	Port qty**	-

^ Transceivers and DAC cables are available only from Mellanox or as a part of a Lenovo Intelligent Cluster solution.
† Supported only in the PCIe 3.0 x16 slots (PCIe x16 riser cards 00KA061, 00KA066, and feature A5AD).
* SFP+ and QSFP+ based adapters require supported transceivers or DAC cables that must be purchased for the adapter (See "40 Gb QSFP+ transceivers and DAC cables" and "10 Gb SFP+ transceivers and DAC cables" in the table above).
# Transceivers and DAC cables are available only from Mellanox.
** The maximum number of transceivers or cables that are supported per adapter equals the quantity of the adapter ports. All adapter ports must have the same type of transceiver or DAC cable selected.

Configuration note: If the QLogic 8200 Dual Port 10GbE SFP+ VFA (90Y4600) or Intel X540 ML2 Dual Port 10GbaseT Adapter (00D1994) is used, the additional system fans might be required (see Cooling for details).

For more information, see the list of Product Guides in the Ethernet adapters category:
https://lenovopress.com/servers/options/ethernet

SAS adapters for external storage

The following table lists SAS RAID controllers and HBAs for external storage attachments that are supported by the System x3550 M5 server.

Note: SAS RAID controllers and HBAs for external storage are supported in low profile and full-high PCIe x8 and x16 slots supplied by the riser cards 1 and 2.

Table 20. SAS RAID adapters and HBAs for external storage
Description	Part number	Feature code	Maximum supported	I/O slots supported
12 Gbps SAS RAID adapters - PCIe
ServeRAID M5225-2GB SAS/SATA Controller	00AE938	A5ND	3	1, 2, 3
Feature on Demand (FoD) upgrades for the M5225 (one per server)*
ServeRAID M5200 Series RAID 6 Upgrade	47C8706	A3Z5	1*	-
ServeRAID M5200 Series Performance Accelerator	47C8710	A3Z7	1*	-
ServeRAID M5200 Series SSD Caching Enabler	47C8712	A3Z8	1*	-
12 Gbps SAS HBAs - PCIe
N2225 SAS/SATA HBA	00AE912	A5M0	3	1, 2, 3

* One FoD upgrade for the M5225 activates the feature on all M5200 series controllers (M5210, M5225) installed in a server.

The following table summarizes features of supported HBAs.

Table 21. SAS RAID controller and HBA features and specifications summary (PN = Part number)
Feature	M5225-2GB	N2225
Part number	00AE938	00AE912
Form factor	Low profile	Low profile
Controller chip	LSI SAS3108	LSI SAS3008
Host interface	PCIe 3.0 x8	PCIe 3.0 x8
Port interface	12 Gbps SAS	12 Gbps SAS
Number of external ports	8	8
External port connectors	2x Mini-SAS HD (SFF-8644)	2x Mini-SAS HD (SFF-8644)
Drive interface	SAS, SATA	SAS, SATA
Drive type	HDD, SED, SSD	HDD, SSD
Maximum number of devices	240	1024
RAID levels	0/1/10/5/50; Optional 6/60 (PN 47C8706)	None
JBOD mode	No	Yes
Cache	2 GB (included)	None
Cache protection	Flash (included)	None
Performance Accelerator (FastPath)	Optional (PN 47C8710)	None
SSD Caching (CacheCade Pro 2.0)	Optional (PN 47C8712)	None

For more information about the ServeRAID M5225-2GB, see the Lenovo Press Product Guide: http://lenovopress.com/tips1258

For more information about SAS HBAs, see the list of Product Guides in the Host bus adapters category:
https://lenovopress.com/servers/options/hba

Fibre Channel host bus adapters

The following table lists Fibre Channel HBAs supported by the System x3550 M5 server.

Note: FC HBAs are supported in low profile and full-high PCIe x8 and x16 slots supplied by the riser cards 1 and 2.

Table 22. Fibre Channel HBAs
Description	Part number	Feature code	Maximum supported	I/O slots supported
16 Gb Fibre Channel - PCIe
Emulex 16Gb Gen6 FC Single-port HBA	01CV830	ATZU	3	1, 2, 3
Emulex 16Gb FC Single-port HBA	81Y1655	A2W5	2	2, 3
Emulex 16Gb Gen6 FC Dual-port HBA	01CV840	ATZV	3	1, 2, 3
Emulex 16Gb FC Dual-port HBA	81Y1662	A2W6	2	2, 3
QLogic 16Gb Enhanced Gen5 FC Single-port HBA	01CV750	ATZB	3	1, 2, 3
QLogic 16Gb FC Single-port HBA	00Y3337	A3KW	3	1, 2, 3
QLogic 16Gb Enhanced Gen5 FC Dual-port HBA	01CV760	ATZC	3	1, 2, 3
QLogic 16Gb FC Dual-port HBA	00Y3341	A3KX	3	1, 2, 3
8 Gb Fibre Channel - PCIe
Emulex 8Gb FC Single-port HBA	42D0485	3580	3	1, 2, 3
Emulex 8Gb FC Dual-port HBA	42D0494	3581	3	1, 2, 3
QLogic 8Gb FC Single-port HBA	42D0501	3578	3	1, 2, 3
QLogic 8Gb FC Dual-port HBA	42D0510	3579	3	1, 2, 3

For more information, see the list of Product Guides in the Host bus adapters category:
https://lenovopress.com/servers/options/hba

Flash storage adapters

The System x3550 M5 server supports the Flash storage adapters listed in the following table.

Table 23. Flash storage adapters (LP = Low Profile PCIe adapter, FH = Full-High PCIe adapter)
Description	Part number	Feature code	Maximum supported	I/O slots supported
Enterprise Performance
Intel P3700 1.6TB NVMe Enterprise Performance Flash Adapter (LP)	00YA812	AT7L	3	1, 2, 3
Intel P3700 2.0TB NVMe Enterprise Performance Flash Adapter (LP)	00YA815	AT7M	3	1, 2, 3
Enterprise Mainstream
io3 1.25TB Enterprise Mainstream Flash Adapter (LP)	00YA800	AT7N	3	1, 2, 3
io3 1.6TB Enterprise Mainstream Flash Adapter (LP)	00YA803	AT7P	3	1, 2, 3
io3 3.2TB Enterprise Mainstream Flash Adapter (LP)	00YA806	AT7Q	3	1, 2, 3
io3 6.4TB Enterprise Mainstream Flash Adapter (FH)	00YA809	AT7R	1	2*
Enterprise
1000GB Enterprise io3 Flash Adapter (LP)	00AE995	ARYP	3	1, 2, 3
1300GB Enterprise io3 Flash Adapter (LP)	00AE998	ARYQ	3	1, 2, 3
2600GB Enterprise io3 Flash Adapter (LP)	00JY001	ARYR	3	1, 2, 3

* Supported only in the PCIe slot 2 and requires the FHHL x16 Riser Card 2 (feature code A5AD) and the second processor or the FHHL x8 Riser Card 2 (feature code A5AE).

Configuration notes:

The Flash Adapters might require the use of the additional system fans (see Cooling for details).
Low profile Flash Adapters are supported in low profile and half-high slots; full-high Flash Adapters are supported only in the PCIe slot 2 and require the FHHL x8 or x16 Riser Card 2 (feature code A5AE or A5AD, respectively); FHHL x16 Riser requires the second processor.
The io3 Flash Adapters cannot be factory installed; they are supported as field-installable options only. The server cannot be shipped with these adapters installed.

For more information, see the list of Product Guides in the Flash storage adapters category:
http://lenovopress.com/servers/options/ssdadapter

GPU adapters

The System x3550 M5 server supports graphics processing units (GPUs) listed in the following table.

Table 24. GPU adapters
Description	Part number	Feature code	Maximum supported	I/O slots supported
NVIDIA Quadro K420	00YL370	ASPN	1	2
NVIDIA Quadro K600	None*	A3WH	1	2
NVIDIA Quadro K620	00YL371	ASPP	1	2

* Available only through CTO or special bid.

Configuration notes:

The NVIDIA Quadro adapters are full-high adapters that are supported only in the PCIe slot 2.
The FHHL x16 PCIe Riser 2 (feature code A5AD) and the second processor are required.
The maximum memory that can be installed is 1 TB.

Cooling

The System x3550 M5 server supports up to seven system fans that provide dual fan zones cooling with N+1 fan redundancy, and each system fan has two motors.

System x3550 M5 server models with one processor include five system fans, and server models with two processors include seven system fans. Additional system fans are required for models with one processor if any of the following adapters are present in the configuration:

Intel X540 ML2 Dual Port 10GbaseT Adapter (part number 00D1994)
QLogic 8200 Dual Port 10GbE SFP+ VFA (part number 90Y4600)
io3 Enterprise Flash Adapters (part numbers 00AE995, 00AE998, and 00JY001)
io3 Enterprise Mainstream Flash Adapters (part numbers 00YA800, 00YA803, 00YA806, and 00YA809)
P3700 NVMe Enterprise Performance Flash Adapters (part numbers 00YA812 and 00YA815)

The following table lists the additional system fan option for the System x3550 M5. The option contains two additional fans.

Table 25. Additional system fans
Description	Part number	Feature code	Maximum supported
x3550 M5 Fan Gen 2	00MV373	ATL1	1

Power supplies and cables

The System x3550 M5 server supports up to two redundant power supplies, and is capable of N+N redundancy depending on the configuration. Standard models come with one power supply. The following table lists the power supplies.

Table 26. Power supplies
Description	Part number	Feature code	Maximum supported
System x 550W High Efficiency Platinum AC Power Supply	00KA094	A5AX	2
System x 750W High Efficiency Platinum AC Power Supply	00KA096	A5AY	2
System x 750W High Efficiency Titanium AC Power Supply (200-240V)	00KA097	A5AZ	2
System x 900W High Efficiency Platinum AC Power Supply	00KA098	A5B0	2
System x 900W High Efficiency -48 V DC Power Supply	00MV212	ASPR	2
System x 1500W High Efficiency Platinum AC Power Supply (200-240V)	00MV211	ASPQ	2

General power supply rules are as follows:

Minimum of one and maximum of two power supplies per system
If two are installed, power supplies must be identical

Important: The Standalone Solution Configuration Tool (SSCT) and Lenovo Hardware Configurator power supply selection rules allow a subset of possible configurations due to power restrictions. Configurations that cannot be built in SSCT or Hardware Configurator due to power restrictions may still be supported. To verify support and ensure that the right power supply is chosen for optimal performance, you should always validate your server configuration using the latest version of the System x Power Configurator:
https://www.ibm.com/support/entry/portal/docdisplay?lndocid=LNVO-PWRCONF

The System x3550 M5 servers ship standard with or without a power cord (model dependent). A hot-swap power supply option ships standard with one 2.8m, 10A/100-250V, IEC 320-C13 to C14 rack power cable.

Country-specific line cords and rack power cables can be ordered, if needed (see the following table).

Table 27. Power cables
Description	Part number	Feature code
Rack power cables
1.5m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable	39Y7937	6201
2.8m, 10A/100-250V, C13 to IEC 320-C20 Rack Power Cable	39Y7938	6204
4.3m, 10A/100-250V, C13 to IEC 320-C14 Rack Power Cable	39Y7932	6263
Country-specific line cords
Argentina 10A/250V C13 to IRAM 2073 2.8m line cord	39Y7930	6222
Australia/NZ 10A/250V C13 to AS/NZ 3112 2.8m line cord	39Y7924	6211
Brazil 10A/125V C13 to NBR 6147 2.8m line cord	39Y7929	6223
China 10A/250V C13 to GB 2099.1 2.8m line cord	39Y7928	6210
Denmark 10A/250V C13 to DK2-5a 2.8m line cord	39Y7918	6213
European 10A/230V C13 to CEE7-VII 2.8m line cord	39Y7917	6212
India 10A/250V C13 to IS 6538 2.8m line cord	39Y7927	6269
Israel 10A/250V C13 to SI 32 2.8m line cord	39Y7920	6218
Italy 10A/250V C13 to CEI 23-16 2.8m line cord	39Y7921	6217
Korea 12A/250V C13 to KETI 2.8m line cord	39Y7925	6219
South Africa 10A/250V C13 to SABS 164 2.8m line cord	39Y7922	6214
Switzerland 10A/250V C13 to SEV 1011-S24507 2.8m line cord	39Y7919	6216
Taiwan 10A/250V C13 to CNS 10917-3 2.8m line cord	00CG265	6317
Taiwan 15A/125V C13 to CNS 10917-3 2.8m line cord	00CG267	6386
United Kingdom 10A/250V C13 to BS 1363/A 2.8m line cord	39Y7923	6215
United States 10A/125V C13 to NEMA 5-15P 4.3m line cord	39Y7931	6207
United States 10A/250V C13 to NEMA 6-15P 2.8m line cord	46M2592	A1RF

Integrated virtualization

The System x3550 M5 server supports VMware ESXi installed on a USB memory key or one or two SD cards in the SD Media Adapter. The USB memory key is installed in a USB socket inside the server. The SD Media Adapter is installed in a dedicated slot inside the server.

When only one SD card is installed in the SD Media Adapter, you can create up to 16 volumes, each of which is presented to UEFI as a bootable device. When two SD Media cards are inserted, volumes can be mirrored (RAID 1) across both cards, up to a total of eight mirrored volumes. The RAID functionality is handled internally by the SD Media Adapter.

The following table lists virtualization options.

Table 28. Virtualization options
Description	Part number	Feature code	Maximum supported
USB memory key
USB Memory Key for VMware ESXi 5.1 Update 2	00ML233	ASN6	1
USB Memory Key for VMware ESXi 5.5 Update 2	00ML235	ASN7	1
USB Memory Key for VMware ESXi 5.5 Update 3B	00WH150	ATZG	1
USB Memory Key 4G for VMware ESXi 6.0 Update 1A	00WH138	ATRL	1
USB Memory Key for VMware ESXi 6.0 Update 2	00WH151	ATZH	1
Blank USB Memory Key 4G SLC for VMware ESXi Downloads	00WH140	ATRM	1
Blank USB Memory Key for VMware ESXi Downloads	41Y8298	A2G0	1
SD Media Adapter and SD cards
SD Media Adapter (Option 00ML706 includes 2 blank 32GB SD cards)	00ML706*	A5TJ	1
Blank SD Media	00ML700	AS2V	2
RAID Adapter for SD Media w/ VMware ESXi 5.1 U2 (1 SD Media)	None**	ASCG	1
RAID Adapter for SD Media w/ VMware ESXi 5.1 U2 (2 SD Media, RAIDed)	None**	AS4B	1
RAID Adapter for SD Media w/ VMware ESXi 5.5 U2 (1 SD Media)	None**	ASCH	1
RAID Adapter for SD Media w/ VMware ESXi 5.5 U2 (2 SD Media, RAIDed)	None**	AS4C	1
RAID Adapter for SD Media w/ VMware ESXi 5.5 U3B (1 SD Media)	None**	ATZK	1
RAID Adapter for SD Media w/ VMware ESXi 5.5 U3B (2 SD Media, RAIDed)	None**	ATZJ	1
RAID Adapter for SD Media w/VMware ESXi 6.0 U1A (1 SD Media)	None**	ATSA	1
RAID Adapter for SD Media w/VMware ESXi 6.0 U1A (2 SD Media, RAIDed)	None**	ATS9	1
RAID Adapter for SD Media w/ VMware ESXi 6.0 U2 (1 SD Media)	None**	ATZM	1
RAID Adapter for SD Media w/ VMware ESXi 6.0 U2 (2 SD Media, RAIDed)	None**	ATZL	1

* Option 00ML706 includes two 32 GB SD cards; however, for CTO orders, feature code A5TJ does not include SD media and the 32 GB cards and VMware vSphere preload must be selected separately.
** CTO only.

Operating systems

The System x3550 M5 server supports the following operating systems:

Microsoft:
- Microsoft Windows Server 2016
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012
Red Hat:
- Red Hat Enterprise Linux 7.2
- Red Hat Enterprise Linux 6.8 Server x64 Edition
- Red Hat Enterprise Linux 6.7 Server x64 Edition
SUSE:
- SUSE Linux Enterprise Server 12 SP1
- SUSE Linux Enterprise Server with Xen 12 SP1
- SUSE Linux Enterprise Server 11 for AMD64/EM64T SP4
- SUSE Linux Enterprise Server 11 with Xen for AMD64/EM64T SP4
VMware:
- VMware vSphere 6.0 (ESXi) 6.0 Update 2
- VMware vSphere 5.5 (ESXi) Update 3

See the ServerProven® website for the latest information about the specific versions and service levels supported and any other prerequisites:
http://www.lenovo.com/us/en/serverproven/

Systems management

The System x3550 M5 supports the following systems management tools:

Integrated Management Module 2.1
Light path diagnostics
Lenovo ToolsCenter
Lenovo XClarity Administrator
Lenovo XClarity Energy Manager

Integrated Management Module 2.1

The System x3550 M5 server contains Integrated Management Module II (IMM2.1), which provides advanced service-processor control, monitoring, and an alerting function. If an environmental condition exceeds a threshold or if a system component fails, the IMM2.1 lights LEDs to help you diagnose the problem, records the error in the event log, and alerts you to the problem. Optionally, the IMM2.1 also provides a virtual presence capability for remote server management capabilities.

The IMM2.1 provides remote server management through industry-standard interfaces:

Intelligent Platform Management Interface (IPMI) Version 2.0
Simple Network Management Protocol (SNMP) Version 3
Common Information Model (CIM)
Web browser

The optional Integrated Management Module Advanced Upgrade is required to enable the remote presence and blue-screen capture features. The remote presence feature provides the following functions:

Remotely viewing video with graphics resolutions up to 1600x1200 at 75 Hz with up to 23 bits per pixel
Remotely accessing the server using the keyboard and mouse from a remote client
Mapping the CD or DVD drive, diskette drive, and USB flash drive on a remote client, and mapping ISO and diskette image files as virtual drives that are available for use by the server
Uploading a diskette image to the IMM memory and mapping it to the server as a virtual drive

The blue-screen capture feature captures the video display contents before the IMM2.1 restarts the server when the IMM2.1 detects an operating system hang condition. A system administrator can use the blue-screen capture to assist in determining the cause of the hang condition.

The following table lists the remote management option.

Table 29. Remote management option
Description	Part number	Feature code	Maximum supported
Integrated Management Module Advanced Upgrade	90Y3901	A1ML	1

Light path diagnostics

All System x3550 M5 server models include basic light path diagnostics, which provides the system LEDs on the front of the server (see Components and connectors) and the LEDs near the monitored components (for example, the DIMM error LED on the system board).

Models with 4x or 8x 2.5-inch drive bays support an optional next-gen light path LCD display panel. The LCD display enables you to have quick access to system status, firmware, network, and health information.

Models with 4x 3.5-inch or 10x 2.5-inch front drive bays do not support an LCD display panel.

The LCD panel can be configured via CTO or is included in the Front IO cage Advanced (see the following table).

Table 30. Light path diagnostics options
Description	Part number	Feature code	Maximum supported
System x3550 M5 front IO cage Advanced	00MV368*	ATLK**	1
System x Advanced LCD Light Path Kit	None**	ATYV	1

* The option part number for the front IO cage Advanced (00MV368) includes the LCD display.
** If configured via CTO, the LCD display (feature code ATYV) is NOT included in the front IO cage Advanced (feature code ATLK); both front IO cage Advanced (feature code ATLK) and LCD display (feature code ATYV) must be selected.

Lenovo ToolsCenter

Lenovo offers the following ToolsCenter software tools that can help you set up, use, and maintain the server at no additional cost:

Lenovo ToolsCenter Suite
The ToolsCenter Suite tool is a consolidation of server management tools that helps simplify the management of System x servers. It provides functions to collect full system health information (including health status), configure system setting, update system firmware and drivers, and FoD mass activation key management for multiple endpoints.
Lenovo ServerGuide
The ServerGuide tool simplifies the process of configuring RAID and installing supported Microsoft Windows Server operating systems and device drivers on a System x server.
Lenovo UpdateXpress System Packs
The UpdateXpress System Packs (UXSPs) are integration-tested bundles that enable you to maintain your server firmware and device drivers up-to-date and help you avoid unnecessary server outages.
Lenovo Dynamic System Analysis
The Dynamic System Analysis (DSA) pre-boot or standalone diagnostics software speeds up troubleshooting tasks to reduce service time.

For more information and downloads, visit the ToolsCenter web page:
http://support.lenovo.com/us/en/documents/LNVO-center

Lenovo XClarity Administrator

Lenovo XClarity is a centralized systems management solution that helps administrators deliver infrastructure faster. This solution integrates easily with Lenovo x86 servers, Flex System, and RackSwitch switches, providing automated agent-less discovery, monitoring, firmware updates, configuration management, and bare metal deployment of operating systems and hypervisors across multiple systems.

Lenovo XClarity Administrator is an optional software component for the System x3550 M5 which can be downloaded and used at no charge to discover and monitor the x3550 M5 and manage firmware upgrades for them.

If software support is required for Lenovo XClarity Administrator, or Lenovo XClarity Administrator premium features (such as configuration management and operating system deployment) are required, or both, Lenovo XClarity Pro software subscription should be ordered. Lenovo XClarity Pro is licensed on a per managed system basis, that is, each managed Lenovo system requires a license.

The following table lists the geo-specific Lenovo XClarity software license options.

Table 31. Lenovo XClarity software options
Description	Part number (NA, AP, Japan)*	Part number (EMEA, LA)**	Quantity
Lenovo XClarity Pro, per Mngd Server w/1 Yr SW S&S	00MT201	00MT207	1
Lenovo XClarity Pro, per Mngd Server w/3 Yr SW S&S	00MT202	00MT208	1
Lenovo XClarity Pro, per Mngd Server w/5 Yr SW S&S	00MT203	00MT209	1

* NA = North America; AP = Asia Pacific
** EMEA = Europe, Middle East, Africa; LA = Latin America

Lenovo XClarity Administrator offers the following standard features that are available at no charge:

Auto-discovery and monitoring of Lenovo x86 servers, RackSwitch switches, and Flex System chassis
Firmware updates and compliance enforcement
External alerts and notifications via SNMP traps, syslog remote logging, and e-mail
Secure connections to managed endpoints
NIST 800-131A or FIPS 140-2 compliant cryptographic standards between the management solution and managed endpoints
Integration into existing higher level management systems such as cloud automation and orchestration tools through REST APIs, providing extensive external visibility and control over hardware resources
An intuitive, easy-to-use GUI
Scripting with Windows PowerShell, providing command-line visibility and control over hardware resources

Lenovo XClarity Administrator offers the following premium features that require an optional Pro license:

Pattern-based configuration management that allows to define configurations once and apply repeatedly without errors when deploying new servers or redeploying existing servers without disrupting the fabric
Bare-metal deployment of operating systems and hypervisors to streamline infrastructure provisioning

In addition, Lenovo XClarity Administrator offers two software plug-in modules (Lenovo XClarity Integrators) at no charge (if software support is required, a Lenovo XClarity Pro software subscription license should be ordered):

Lenovo XClarity Integrator for Microsoft System Center
Lenovo XClarity Integrator for VMware vCenter

Lenovo XClarity Integrators allow administrators to manage physical infrastructure from leading external virtualization management software tools from Microsoft and VMware. Lenovo XClarity Integrators offer the following additional features:

Ability to discover, manage, and monitor Lenovo server hardware from VMware vCenter or Microsoft System Center
Deployment of firmware updates and configuration patterns to System x M5, M6, and X6 rack servers and Flex System from the virtualization management tool
Non-disruptive server maintenance in clustered environments that reduces workload downtime by dynamically migrating workloads from affected hosts during rolling server updates or reboots
Greater service level uptime and assurance in clustered environments during unplanned hardware events by dynamically triggering workload migration from impacted hosts when impending hardware failures are predicted

For more information, refer to the Lenovo XClarity Administrator Product Guide:
http://lenovopress.com/tips1200

Lenovo XClarity Energy Manager

Lenovo XClarity Energy Manager provides a stand-alone, web-based agent-less power management console that provides real time data and enables you to observe, plan and manage power and cooling for Lenovo System x and ThinkServer x86 servers. Using built-in intelligence, it identifies server power consumption trends and ideal power settings and performs cooling analysis so that you can define and optimize power-saving policies.

Lenovo XClarity Energy Manager offers the following capabilities:

Reports vital server information, such as power, temperature and resource utilization
Monitors inlet temperature to locate hot spots, reducing the risk of data or device damage
Provides finely-grained controls to limit platform power in compliance with IT policy
Generates alerts when a user-defined threshold is reached

Lenovo XClarity Energy Manager is an optional software component for the System x3550 M5 that is licensed on a per managed node basis, that is, each managed server requires a license.

The following table lists the geo-specific Lenovo XClarity Energy Manager software license options.

Table 32. Lenovo XClarity Energy Manager software options
Description	Part number (NA, AP, Japan)*	Part number (EMEA, LA)**	Quantity
Lenovo XClarity Energy Manager, 1 Node w/ 1 Yr S&S	01DA225	01DA228	1
Lenovo XClarity Energy Manager, 5 Nodes w/ 1 Yr S&S	01DA226	01DA229	1
Lenovo XClarity Energy Manager, 50 Nodes w/ 1 Yr S&S	01DA227	01DA230	1

* NA = North America; AP = Asia Pacific
** EMEA = Europe, Middle East, Africa; LA = Latin America

Rack installation

The following table lists the rack installation options that are available for the System x3550 M5 server.

Table 33. Rack installation options
Description	Part number	Feature code	Maximum supported
4-post rail kits
System x3550 M5 Non-ball Bearing Slide	00MV369	ATL0	1
System x3550 M5 Slide Kit G4	00KA606	A5AK	1
System x Gen-II Universal Slides Kit	00KA500	A5FW	1
System x M5 Custom Rail Kit	00MW239	ATLQ	1
Cable management arm (CMA)
System x Enterprise 1U Cable Management Arm (CMA)	00KA607	A5AL	1
Lockable front bezel
System x3550 M5 Security Bezel	00KA162	A5AP	1

The following table summarizes the rail kit features and specifications.

Table 34. Rail kit features and specifications summary
Feature	System x3550 M5 Non-ball Bearing Slide Kit	System x3550 M5 Slide Kit G4	System x Gen-II Universal Slides Kit	System x M5 Custom Rail Kit
Part number	00MV369	00KA606	00KA500	00MW239
Rail type	Half-out slide (friction)	Full-out slide (ball bearing)	Full-out slide (ball bearing)	Half-out slide (friction)
Toolless installation	Yes	Yes	No	Yes
CMA support	No	Yes	Yes	No
In-rack server maintenance	No	Yes	Yes	No
1U PDU support	Yes	Yes	Yes	Yes
0U PDU support	Limited**	Limited*	Limited*	Limited**
Rack type	IBM and Lenovo 4-post, IEC standard- compliant	IBM and Lenovo 4-post, IEC standard- compliant	Any 4-post, IEC standard- compliant	IBM and Lenovo 4-post, IEC standard- compliant
Mounting holes	Square or round	Square or round	Square, round, or threaded	Square or round
Mounting flange thickness	2 mm (0.08 in.) – 4 mm (0.16 in.)	2 mm (0.08 in.) – 3.3 mm (0.13 in.)	2 mm (0.08 in.) – 4.65 mm (0.18 in.)	2 mm (0.08 in.) – 4 mm (0.16 in.)
Distance between front and rear mounting flanges	609.6 mm (24 in.) – 914.4 mm (36 in.)	617 mm (24.29 in.) – 812 mm (31.97 in.)	617 mm (24.29 in.) – 812 mm (31.97 in.)	595 mm (23.43 in.) – 746 mm (29.37 in.)
Rail length***	728.1 mm (28.6 in.)	833.5 mm (32.81 in.)	836.8 mm (32.94 in.)	755 mm (29.72 in.)

* The rack must be at least 1100 mm (43.31 in.) deep if no CMA is used, or at least 1200 mm (47.24 in.) deep if a CMA is used.
** The rack must be at least 1000 mm (39.37 in.) deep.
*** Measured when mounted on the rack, from the front surface of the front mounting flange to the rear most point of the rail.

Note: The System x3550 M5 Slide Kit G4 (00KA606) is included with the standard models that are listed in Table 2 (except models Q2x and R2x that ship with the non-ball bearing slide kit [00MV369]) and TopSeller models that are listed in Table 3.

Physical specifications

The System x3550 M5 server has the following dimensions and weight (approximate):

Height: 43 mm (1.7 in)
Width: 434 mm (17.1 in)
Depth: 734 mm (28.9 in)
Weight:
- Minimum configuration: 13.8 kg (30.4 lb)
- Maximum configuration: 19.3 kg (42.5 lb)

Operating environment

The System x3550 M5 server is supported in the following environment:

Air temperature:
- Server on: 5 °C to 40 °C (41 °F to 104 °F); altitude: 0 to 950 m (3,117 ft); decrease the maximum system temperature by 1 °C for every 175-m increase in altitude above 950 m.
- Server off: 5 °C to 45 °C (41 °F to 113 °F)
- Maximum altitude: 3,050 m (10,000 ft), 5 °C to 28 °C (41 °F to 82 °F)
- Shipment: -40 °C to +60 °C (-40 °F to 140 °F) at up to 10,700 m (35,105 ft)

Humidity:
- Server on: 8% to 85% (non-condensing), max dew point 24 °C, max rate of change 5 °C/hr
- Server off: 8% to 85% (non-condensing), max dew point 27 °C

Design to ASHRAE Class A3, ambient of 40 °C (104 °F), with relaxed support:
- Supports cloud-like workload with no performance degradation acceptable (Turbo-Off).
- Under no circumstance can any combination of worst case workload and configuration result in system shutdown or design exposure at 40 °C.

Electrical:
- Models with 1500 W AC Platinum power supplies:
  - 200 - 240 (nominal) V ac; 50 Hz or 60 Hz; 8.35 A
  - Input kilovolt-amperes (kVA) (approximately):
    - Minimum configuration: 0.14 kVA
    - Maximum configuration: 1.967 kVA
- Models with 900 W AC Platinum power supplies:
  - 100 to 127 (nominal) V ac; 50 Hz or 60 Hz; 10.3 A
  - 200 to 240 (nominal) V ac; 50 Hz or 60 Hz; 5.0 A
  - Input kilovolt-amperes (kVA) (approximately):
    - Minimum configuration: 0.14 kVA
    - Maximum configuration: 1.194 kVA
- Models with 750 W Platinum AC power supplies:
  - 100 to 127 (nominal) V ac; 50 Hz or 60 Hz; 8.6 A
  - 200 to 240 (nominal) V ac; 50 Hz or 60 Hz; 4.2 A
  - Input kilovolt-amperes (kVA) (approximately):
    - Minimum configuration: 0.14 kVA
    - Maximum configuration: 1.015 kVA
- Models with 750 W Titanium AC power supplies:
  - 200 to 240 (nominal) V ac; 50 Hz or 60 Hz; 4.2 A
  - Input kilovolt-amperes (kVA) (approximately):
    - Minimum configuration: 0.14 kVA
    - Maximum configuration: 0.965 kVA
- Models with 550 W AC power supplies:
  - 100 to 127 (nominal) V ac; 50 Hz or 60 Hz; 6.5 A
  - 200 to 240 (nominal) V ac; 50 Hz or 60 Hz; 3.3 A
  - Input kilovolt-amperes (kVA) (approximately):
    - Minimum configuration: 0.14 kVA
    - Maximum configuration: 0.732 kVA
- Models with -48Vdc 900 W power supplies:
  - -48 - -60 (nominal) V dc; 25.8 A
  - Input kilovolt-amperes (kVA) (approximately):
    - Minimum configuration: 0.14 kVA
    - Maximum configuration: 1.237 kVA
BTU output:
- Minimum configuration: 461 Btu/hr (135 watts)
- Maximum configuration: 6667 Btu/hr (1954 watts)

Noise level:
- 6.6 bels (operating)
- 6.4 bels (idle)

Warranty

The System x3550 M5 has a three-year customer-replaceable unit (CRU) and onsite (for field-replaceable units [FRUs] only) limited warranty with standard call center support during normal business hours and 9x5 Next Business Day Parts Delivered. Also available are Lenovo Services warranty maintenance upgrades and post-warranty maintenance agreements, with a well-defined scope of services, including service hours, response time, term of service, and service agreement terms and conditions.

Lenovo warranty service upgrade offerings are country-specific. Not all warranty service upgrades are available in every country. For more information about Lenovo warranty service upgrade offerings that are available in your country, go to the Data Center Advisor and Configurator (formerly known as LESC) website http://lesc.lenovo.com, then do the following steps:

In the Parts & Services box in the middle of the page, click the Services only radio button.
In the same box, type in your machine type model and press Enter.
From the search results, you can click either Deployment Services or Support Services to view the offerings.

The following table explains warranty service definitions in more detail.

Table 35. Warranty service definitions
Term	Description
Onsite Service	If a problem with your product cannot be resolved via telephone, a Service Technician will be dispatched to arrive at your location.
Parts Delivered	If a problem with your product cannot be resolved via telephone and a CRU part is required, Lenovo will send a replacement CRU to arrive at your location. If a problem with your product cannot be resolved via telephone and a FRU part is required, a Service Technician will be dispatched to arrive at your location.
Technician Installed Parts	If a problem with your product cannot be resolved via telephone, a Service Technician will be dispatched to arrive at your location.
Hours of coverage	9x5: 9 hours per day, 5 days per week, during normal business hours, excluding local public and national holidays 24x7: 24 hours per day, 7 days per week, 365 days per year.
Response time target	2 hours, 4 hours, or Next Business Day: The time period from when the telephone based troubleshooting is completed and logged, to the delivery of the CRU or arrival of a Service Technician and part at the Customer’s location for repair.
Committed Repair	6 hours: The time period between the service request registration in Lenovo’s call management system and the restoration of the product to conformance with its specification by a Service Technician.

The following Lenovo warranty service upgrades are available:

Warranty and maintenance service upgrades:
- Three, four, or five years of 9x5 or 24x7 service coverage
- Parts delivered or technician installed parts from next business day to 4 or 2 hours
- Committed repair service
- Warranty extension of up to 5 years
- Post warranty extensions
Committed Repair Service
Committed Repair Services enhances the level of Warranty Service Upgrade or Post Warranty/Maintenance Service offering associated with the selected systems. Offerings vary and are available in select countries.
- Priority handling to meet defined time frames to restore the failing machine to good working condition
- 24x7x6 committed repair: Service performed 24 hours per day, 7 days per week, within 6 hours
YourDrive YourData
Lenovo’s YourDrive YourData service is a multi-drive retention offering that ensures your data is always under your control, regardless of the number of drives that are installed in your Lenovo server. In the unlikely event of a drive failure, you retain possession of your drive while Lenovo replaces the failed drive part. Your data stays safely on your premises, in your hands. The YourDrive YourData service can be purchased in convenient bundles with Lenovo warranty upgrades and extensions.
Microcode Support
Keeping microcode current helps prevent hardware failures and security exposure. There are two levels of service: analysis of the installed base and analysis and update where required. Offerings vary by country and can be bundled with other warranty upgrades and extensions.
Enterprise Software Support
Lenovo Enterprise Server Software Support can help you troubleshoot your entire server software stack. Choose support for server operating systems from Microsoft, Red Hat, SUSE, and VMware; Microsoft server applications; or both operating systems and applications. Support staff can help answer troubleshooting and diagnostic questions, address product compatibility and interoperability issues, isolate causes of problems, report defects to software vendors, and more.

In addition, you can access hardware “how to” support for System x servers. Staff can help resolve hardware problems not covered under warranty, refer you to the right documentation and publications, provide corrective service information for known defects, and transfer you to a hardware support call center if needed.
Hardware Installation Services

Lenovo experts can seamlessly manage the physical installation of your server, storage, or networking hardware. Working at a time convenient for you (business hours or off shift), the technician will unpack and inspect the systems on your site, install options, mount in a rack cabinet, connect to power and network, check and update firmware to the latest levels, verify operation, and dispose of the packaging, allowing your team to focus on other priorities. Your new systems will be configured and ready for your software installation.

Abstract

Change History

Introduction

Did you know?

Key features

Components and connectors

System specifications

Standard models

TopSeller models

Processors

Memory

Internal storage

Controllers for internal storage

Drives for internal storage

Optical drives

I/O expansion

Network adapters

SAS adapters for external storage

Fibre Channel host bus adapters

Flash storage adapters

GPU adapters

Cooling

Power supplies and cables

Integrated virtualization

Operating systems

Systems management

Rack installation

Physical specifications

Operating environment

Warranty

Regulatory compliance

External drive enclosures

External storage systems

External backup units

Ethernet LAN switches

Fibre Channel SAN switches

Rack cabinets

KVM switches and consoles

Power distribution units

Uninterruptible power supply units

Lenovo Financial Services

Related publications and links

Related product families