Lenovo ThinkServer RD550 User manual

Lenovo ThinkServer RD550 (E5-2600 v4)
Product Guide
The Lenovo ThinkServer RD550 is an enterprise class, dual-socket server that features Intel Xeon
processor E5-2600 v4 product family and supports up to 1.5 TB of DDR4 memory, 22 cores, and 44
threads per socket.
With the capability to support mix and match internal hard disk drive (HDD) and solid-state drive (SSD)
storage with up to 12x 2.5-inch front drive bays, up to five I/O slots with up to 140 GbE networking
capability, up to 8 hot-swap dual rotor fans, hot-swap redundant power supplies, and a dedicated Gigabit
Ethernet out-of-band management port, the ThinkServer RD550 provides leading features and capabilities
in a dense 1U rack-mount design.
The ThinkServer RD550 blends outstanding flexibility and expandability and is the ideal choice for server
consolidation/virtualization, heavy web traffic workloads, data analytics, and line-of-business applications.
The ThinkServer RD550 server is shown in the following figure.
Figure 1. Lenovo ThinkServer RD550
Did you know?
Lenovo’s distinctive AnyFabric design provides a wide choice of powerful 1 Gb and 10 Gb Ethernet
adapters, 10 Gb converged network adapters (CNAs), and 8 Gb and 16 Gb Fibre Channel host bus
adapters (HBAs) to address growing network and storage connectivity bandwidth requirements without the
use of a PCIe slot.
This storage-rich server provides up to 44 TB of storage capacity and features an industry-unique Lenovo
AnyBay design that allows multiple storage types in the same drive bay. M.2 and SD card options are
available, which enable flexible boot drive choices.
The RD550 provides Lenovo AnyRAID technology, a midplane RAID adapter design that connects directly
to the drive backplane without using a PCIe slot. A comprehensive portfolio of AnyRAID controllers is
available for various applications, which include software RAID and RAID on Chip-based controllers.
The RD550 delivers impressive compute power per watt, featuring 80 PLUS Titanium and Platinum
redundant power supplies. This server is designed to meet ASHRAE A4 standards, which enable
customers to lower energy costs.
The RD550 provides outstanding memory performance by supporting two DIMMs per channel at speeds
up to 12% faster than the Intel specification, while still maintaining world-class reliability.
With an efficient cooling design, the RD550 can run continuously at 45 °C with no impact on reliability.
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Key features
The ThinkServer RD550 offers performance and capacity of a 2U system in a 1U rack form factor. Energy-
smart design with powerful high-performance processors, a large capacity of high-performing DDR4
memory, and flexible storage and networking configurations are ideal for business-critical applications and
cloud deployments.
Scalability and performance
The ThinkServer RD550 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 that feature an industry-unique Lenovo
AnyBay™ design, which allows a choice of SAS, SATA or PCIe interface drives in the same
bay, provide up to 44 TB of storage capacity 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 RD550 server offers up to three PCI Express (PCIe) 3.0 I/O expansion slots and up to two
AnyFabric slots for a total of five I/O slots in a dense 1U rack form factor.
Leveraging the unique Lenovo AnyFabric design, the RD550 can house up to eight 10 Gb Ethernet
ports without taking up any of the available PCIe slots.
The RD550 provides Lenovo AnyRAID® technology, which is a midplane RAID adapter that
connects directly to the drive backplane without using a PCIe slot.
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.
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Availability and serviceability
The ThinkServer RD550 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 RD550 server offers memory mirroring and memory rank sparing for redundancy in the event of
a non-correctable memory failure.
The RD550 server offers hot-swap drives supporting RAID redundancy for data protection and
greater system uptime.
The RD550 server offers redundant hot-swap power supplies and hot-swap redundant fans to
provide availability for business-critical applications.
SSDs offer significantly better reliability than traditional mechanical HDDs for greater uptime.
Built-in ThinkServer System Manager (TSM) continuously monitors system parameters, triggers
alerts, and performs recovery actions in case of failure, to minimize downtime.
Embedded Lenovo Diagnostics software speeds up troubleshooting to reduce service time.
Manageability and security
Powerful systems management features simplify local and remote management of the ThinkServer RD550
and deliver enterprise-class data protection:
The server includes ThinkServer System Manager 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 optional Trusted Platform Module (TPM) supports the enablement of advanced cryptographic
functionality, such as digital signatures and Windows BitLocker encryption.
Embedded ThinkServer Deployment Manager (TDM) provides a complete set of provisioning
capabilities from a single interface, which automates many of the tasks that are associated with
server provisioning.
Energy efficiency
The ThinkServer RD550 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.
System power profiles can be configured in UEFI to optimize usage for maximum performance or
energy efficiency.
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.
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Components and connectors
The following figure shows the front of the RD550 3.5-inch drive bay models.
Figure 2. RD550 3.5-inch drive bay model front view
The following figure shows the front of the RD550 2.5-inch drive bay models.
Figure 3. RD550 2.5-inch drive bay model front view
The following figure shows the rear of the RD550 3.5-inch drive bay models.
Figure 4. RD550 3.5-inch drive bay model rear view
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The following figure shows the rear of the RD550 2.5-inch drive bay models.
Figure 5. RD550 2.5-inch drive bay model rear view
The following figure shows the internal components of the RD550 3.5-inch drive bay models.
Figure 6. RD550 3.5-inch drive bay model internal view
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The following figure shows the internal components of the RD550 2.5-inch drive bay models.
Figure 7. RD550 2.5-inch drive bay model internal view
System specifications
The following table lists the ThinkServer RD550 system specifications.
Table 1. System specifications
Components Specification
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 C610 Series.
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.
Maximum memory
capacity
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-correcting code (ECC), Rank Sparing, Mirroring, and Lockstep Mode.
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Drive bays Machine Types 70S6 and 70S7:
8x 2.5-inch SAS/SATA hot-swap (front) with RAID 110i or PCIe RAID controller
Machine Types 70R5 and 70R6:
8x 2.5-inch SAS/SATA hot-swap (front) with RAID 110i or AnyRAID controller
12x 2.5-inch SAS/SATA hot-swap (front)
10x 2.5-inch SAS/SATA hot-swap (front) + 2x 2.5-inch AnyBay (front)
Machine Types 70R3 and 70R4:
4x 3.5-inch SAS/SATA hot-swap (front) + 2x 2.5-inch SATA hot-swap (rear)
Drive types 2.5-inch drives:
SAS HDDs up to 1.8 TB
Nearline (NL) SATA HDDs up to 2 TB
SAS SSDs up to 1.6 TB
SATA SSDs up to 1.6 TB
PCIe 3.0 SSDs up to 1.6 TB
3.5-inch drives:
SAS HDDs up to 1.8 TB
NL SAS HDDs up to 10 TB
NL SATA HDDs up to 10 TB
SAS SSDs up to 1.6 TB
SATA SSDs up to 1.6 TB
M.2 Read-Optimized SSDs up to 120 GB.
SD Cards up to 32 GB.
Intermix of SAS and SATA HDDs and SSDs is supported within a system, but not within a
RAID array.
Maximum internal
storage
3.5-inch models: Up to 44 TB (4x 10 TB HDDs [front] + 2x 2 TB 2.5" HDDs [rear]).
2.5-inch models: Up to 24 TB (12x 2 TB HDDs)
RAID support 6 Gbps SATA: RAID 0, 1, 10 with RAID 110i. Optional RAID 5 upgrade is available.
6 Gbps SAS/SATA: RAID 0, 1, and 10 with RAID 510i. Optional RAID 5 and 50
upgrade is available.
12 Gbps SAS/6 Gbps SATA:
RAID 0, 1, and 10 with RAID 520i. Optional RAID 5 and 50 upgrade is
available.
RAID 0, 1, 10, 5, and 50 with RAID 720i or 720ix. Optional (for 720i) or
mandatory (for 720ix) cache memory upgrades are available: 1 GB non-
backed; 1 GB, 2 GB, or 4 GB flash-backed. Cache upgrades include RAID 6
and 60 support. Flash backup upgrades include FastPath and CacheCade Pro
2.0 features.
Optical drive bays 2.5-inch models: None; support for an external optical drive.
3.5-inch models: One; support for DVD-ROM or DVD-RW.
Tape drive bays None; support for an external backup unit.
Network interfaces One (3.5-inch drive bay models) or two (2.5-inch drive bay models) AnyFabric slots for
optional AnyFabric adapters:
Dual-port 10 GbE RJ-45
Dual-port 10 GbE SFP+
Quad-port 10 GbE SFP+
Quad-port GbE RJ-45
Components Specification
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I/O expansion slots 2.5-inch drive bay models:
AnyFabric slot 1 (PCIe 3.0 x8) (system planar)
AnyFabric slot 2 (PCIe 3.0 x8) (system planar)
Slot 1: PCIe 3.0 x8; low profile, half-length
Slot 2: PCIe 3.0 x8; low profile, half-length
Slot 3: PCIe 3.0 x16; low profile, half-length (requires the second CPU)
3.5-inch drive bay models:
AnyFabric slot (PCIe 3.0 x8) (system planar)
Slot 1: PCIe 3.0 x16; low profile, half-length
Slot 2: PCIe 3.0 x16; low profile, half-length (requires the second CPU)
Ports Front (3.5-inch drive bay models only): 2x USB 2.0 ports, 1x VGA port (DB-15).
Rear: 2x USB 3.0 ports, 1x VGA port (DB-9), 1x RJ-45 GbE management port for
TSM. Optional serial port (DB-9).
Cooling Six (with one CPU) or eight (with two CPUs) redundant hot-swap cooling fans with dual
rotors.
Power supply Up to two redundant hot-swap 550 W, 750 W, or 1100 W 100-240 V AC Platinum power
supplies or 750 W 200-240 V AC Titanium power supplies.
Hot-swap parts Drives, power supplies, and fans.
Systems
management
UEFI, status and diagnostic LEDs, ThinkServer System Manager (TSM) (also known as
Baseboard Management Controller [BMC]), ThinkServer Deployment Manager, ThinkServer
Platform Update, and ThinkServer Diagnostics. Optional TSM Premium upgrade for remote
presence (keyboard, video, mouse, and remote drive) and Lenovo XClarity Energy Manager
support. Optional ThinkServer Partner Packs for VMware vCenter and Microsoft System
Center. Optional Lenovo XClarity Administrator and Lenovo XClarity Energy Manager.
Security features Administrator's password, optional Trusted Platform Module (TPM), optional intrusion switch.
Video ASPEED AST2400 with 16 MB memory integrated into the ThinkServer System Manager.
Maximum resolution is 1920x1200 at 60 Hz.
Operating systems Microsoft Windows Server 2012, 2012 R2, and 2016; Red Hat Enterprise Linux (RHEL) Server
6 and 7; SUSE Linux Enterprise Server (SLES) 11 and 12; VMware vSphere (ESXi) 5.5 and
6.0.
Limited warranty One-year or three-year customer-replaceable unit (CRU) and on-site limited warranty with
9x5 next business day (NBD).
Service and
support
Optional service upgrades (country-specific) are available through Lenovo Services offerings:
8-hour or 4-hour response time, warranty extension up to 5 years, Priority Technical Support,
and Keep Your Drive Multi-Drive.
Dimensions Height: 43 mm (1.7 in.), width: 447 mm (17.6 in.), depth: 780 mm (30.7 in.)
Weight Minimum: 13.5 kg (29.8 lb), maximum: 21.0 kg (46.3 lb)
Components Specification
The RD550 server package includes the following items:
Rail kit (select models)
Cable management arm (select models)
Rack installation instructions (select models)
One or two rack power cords or country-specific power cords (select models)
Read Me First printed publication
Documentation DVD containing the ThinkServer RD550 User's Guide
Relationship models
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Relationship models
ThinkServer RD550 relationship models are country-specific; that is, each country may define their own
server models, and not all server models are available in every country.
For a list of the RD550 relationship models (Machine Types 70R4, 70R6, and 70S7), contact a Lenovo or
Lenovo Business Partner representative in your country.
Product availability: RD550 server models are available in Asia Pacific (Australia and New Zealand), China,
and EMEA (Europe, Middle East and Africa). EMEA models are available via Special Bid only.
TopSeller models
ThinkServer RD550 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.
For a list of the RD550 TopSeller models (Machine Types 70R3, 70R5, and 70S6), contact a Lenovo or
Lenovo Business Partner representative in your country.
Product availability: RD550 server models are available in Asia Pacific (Australia and New Zealand), China,
and EMEA (Europe, Middle East and Africa). EMEA models are available via Special Bid only.
Processors
The ThinkServer RD550 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 RD550 server.
Table 2. 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
E5-2609 v4 1.7 GHz 8 / 8 20 MB 1866 MHz 6.4 GT/s 85 W No No 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
E5-2630 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
E5-2650 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
E5-2660 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
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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
Processor
model
Core frequency
(Base / TB Max)
Number
of cores /
threads Cache
Max DDR4
frequency
QPI
speed TDP HT TB VT-x VT-d
For RD550 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 3. Processor options
Description Part number
ThinkServer RD550 Intel Xeon E5-2603 v4 (6C, 85W, 1.7GHz) Processor 4XG0G89091
ThinkServer RD550 Intel Xeon E5-2609 v4 (8C, 85W, 1.7GHz) Processor 4XG0G89086
ThinkServer RD550 Intel Xeon E5-2620 v4 (8C, 85W, 2.1GHz) Processor 4XG0G89081
ThinkServer RD550 Intel Xeon E5-2623 v4 (4C, 85W, 2.6GHz) Processor 4XG0G89096
ThinkServer RD550 Intel Xeon E5-2630 v4 (10C, 85W, 2.2GHz) Processor 4XG0G89076
ThinkServer RD550 Intel Xeon E5-2630L v4 (10C, 55W, 1.8GHz) Processor 4XG0G89106
ThinkServer RD550 Intel Xeon E5-2637 v4 (4C, 135W, 3.5GHz) Processor 4XG0G89047
ThinkServer RD550 Intel Xeon E5-2640 v4 (10C, 90W, 2.4GHz) Processor 4XG0G89071
ThinkServer RD550 Intel Xeon E5-2643 v4 (6C, 135W, 3.4GHz) Processor 4XG0G89044
ThinkServer RD550 Intel Xeon E5-2650 v4 (12C, 105W, 2.2GHz) Processor 4XG0G89066
ThinkServer RD550 Intel Xeon E5-2650L v4 (14C, 65W, 1.7GHz) Processor 4XG0G89101
ThinkServer RD550 Intel Xeon E5-2660 v4 (14C, 105W, 2.0GHz) Processor 4XG0G89061
ThinkServer RD550 Intel Xeon E5-2667 v4 (8C, 135W, 3.2GHz) Processor 4XG0G89041
ThinkServer RD550 Intel Xeon E5-2680 v4 (14C, 120W, 2.4GHz) Processor 4XG0G89056
ThinkServer RD550 Intel Xeon E5-2683 v4 (16C, 120W, 2.1GHz) Processor 4XG0G89053
ThinkServer RD550 Intel Xeon E5-2690 v4 (14C, 135W, 2.6GHz) Processor 4XG0G89038
ThinkServer RD550 Intel Xeon E5-2695 v4 (18C, 120W, 2.1GHz) Processor 4XG0G89050
ThinkServer RD550 Intel Xeon E5-2697 v4 (18C, 145W, 2.3GHz) Processor 4XG0G89110
ThinkServer RD550 Intel Xeon E5-2697A v4 (16C, 145W, 2.6GHz) Processor 4XG0G89112
ThinkServer RD550 Intel Xeon E5-2698 v4 (20C, 135W, 2.2GHz) Processor 4XG0G89035
ThinkServer RD550 Intel Xeon E5-2699 v4 (22C, 145W, 2.2GHz) Processor 4XG0G89108
Memory
Lenovo DDR4 memory is compatibility tested and tuned for optimal ThinkServer performance and
throughput. From a service and support standpoint, Lenovo memory automatically assumes the system
warranty, and Lenovo provides service and support worldwide.
The RD550 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 RD550 server supports up to 1.5 TB of memory at up to 2133 MHz when fully populated. The
actual memory speed in the system is determined as the lowest of the memory speed that is supported by
the specific processor or the maximum operating speeds for the memory configuration that is based on the
number of DIMMs per channel.
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ThinkServer engineering tested and validated system designs that support memory speeds beyond Intel’s
original plan, which provides benefits for workloads that require memory speed and density. Lenovo
ThinkServer memory is fully supported up to the rated speeds that are shown in the following table.
Table 4. RD550 maximum memory speeds and capacities
DIMMs per channel RDIMM LR-DIMM
Memory bus speed Maximum capacity Memory bus speed Maximum capacity
1 DPC 2400 MTps 256 GB (8x 32 GB) 2400 MTps 512 GB (8x 64 GB)
2 DPC 2400 MTps 512 GB (16x 32 GB) 2400 MTps 1 TB (16x 64 GB)
3 DPC 1866 MTps 768 GB (24x 32 GB) 2133 MTps 1.5 TB (24x 64 GB)
The following rules apply when the memory configuration is selected:
The server supports RDIMMs and LRDIMMs.
Mixing different types of memory (RDIMMs and LRDIMMs) is not supported.
DIMM capacities and rank can be mixed.
The following memory protection technologies are supported:
ECC
Lockstep (SDDC x4/x8)
Memory mirroring
Memory sparing
Patrol scrubbing
Demand scrubbing
If lockstep or memory mirroring is used, RDIMMs must be installed in pairs (a minimum of one pair per
each processor), and both RDIMMs in a pair must be identical in type, size, and rank.
If memory sparing is used, one rank of a DIMM in each populated channel is reserved as spare memory;
therefore, single-rank DIMMs cannot be used. DIMMs in a pair must be identical in type, size, and rank.
Lockstep, memory mirroring, and memory sparing modes are mutually exclusive. Only one operational
memory mode can be enabled on the server, and it is a system-wide setting.
The following table lists available memory options for the RD550 server.
Table 5. Memory options
Description Part number
Maximum
supported*
RDIMMs
ThinkServer 8GB DDR4-2400MHz (1Rx4) RDIMM 4X70G88318 12 / 24
ThinkServer 16GB DDR4-2400MHz (2Rx4) RDIMM 4X70G88319 12 / 24
ThinkServer 32GB DDR4-2400MHz (2Rx4) RDIMM 4X70G88320 12 / 24
LRDIMMs
ThinkServer 64GB DDR4-2400MHz (4Rx4) LRDIMM 4X70G88321 12 / 24
* The maximum quantity shown is with one processor / two processors.
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Internal storage
The RD550 server supports the following internal storage configurations:
Server models without any drive bays that can be upgraded to 4x 3.5-inch SAS/SATA hot-swap
drive bays
Server models with 4x 3.5-inch SAS/SATA hot-swap drive bays + optical drive bay that can be
expanded with 2x 2.5-inch SATA hot-swap rear drive bays
Server models with 8x 2.5-inch SAS/SATA hot-swap drive bays that support PCIe RAID or AnyRAID
controller
Server models with 12x 2.5-inch SAS/SATA hot-swap drive bays; two of these SAS/SATA drive
bays can be converted to 2x 2.5" AnyBay drive bays.
The following figure shows the internal drive configurations.
Figure 8. Internal drive configurations
In addition, the RD550 server models can be upgraded with 2x SD card internal slots, or 2x M.2 SSD
internal slots, or both. The SD card slots are connected to the Intel Platform Controller Hub (PCH) via USB;
therefore, they do not require a RAID controller. The M.2 SSD slots require a supported RAID controller (for
details, see Controllers for internal storage).
Note: M.2 SSD slots and 2x 2.5-inch rear drive bays are mutually exclusive, that is, either M.2 SSD slots or
2x 2.5-inch rear drive bays can be selected in the configuration, but not both.
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The following table shows the internal storage options available for the RD550 server.
Table 6. Internal storage options
Description Part number
Maximum
supported
Lenovo ThinkServer Gen 5 1U 3.5" 4-Drive Backplane Kit 4XF0G45885 1
Lenovo ThinkServer Gen 5 2.5" 2-Drive Rear Backplane Kit 4XF0G45877 1
Lenovo ThinkServer RD550 AnyBay Enablement Kit 4XF0G88927 1
Lenovo ThinkServer SDHC Flash Assembly Module 4XF0G88933 1
Lenovo ThinkServer RD550 M.2 Enablement Kit to Motherboard 4XF0G45892 1
Lenovo ThinkServer M.2 Enablement Kit for RD550 3.5" Chassis 4XF0G45890 1
Lenovo ThinkServer RD550 2.5" Chassis M.2 Enablement Kit to RAID720ix 4XF0G45889 1
For additional configuration guidelines, refer to Controllers for internal storage.
Controllers for internal storage
The following table lists the RAID controllers and the additional options used for the internal storage of the
RD550 server. AnyRAID controllers are connected directly to the drive backplane, without the use of a
PCIe slot. PCIe RAID controllers are supported in the PCIe slot 1.
Table 7. RAID controllers for internal storage
Description Part number
Maximum
supported
Lenovo ThinkServer RAID 110i Controller Onboard 1
Lenovo ThinkServer RAID 110i RAID 5 Upgrade 4XB0F28690 1
Lenovo ThinkServer RAID 510i AnyRAID Adapter 4XB0F28691 1
Lenovo ThinkServer RAID 510i RAID 5/50 Upgrade 4XB0F28692 1
Lenovo ThinkServer RAID 520i PCIe Adapter 4XC0G88850 1
Lenovo ThinkServer RAID 520i RAID 5 Upgrade 4XC0G88841 1
Lenovo ThinkServer RAID 720i AnyRAID Adapter 4XC0G88838 1
Lenovo ThinkServer RAID 720i PCIe Adapter 4XC0G88849 1
Lenovo ThinkServer RAID 720ix AnyRAID Adapter with Expander 4XC0G88839 1
Lenovo ThinkServer RAID 720i 1GB Modular DRAM Upgrade 4XB0F28695 1
Lenovo ThinkServer RAID 720i 1GB Modular Flash and Supercapacitor Upgrade 4XB0F28696 1
Lenovo ThinkServer RAID 720i 2GB Modular Flash and Supercapacitor Upgrade 4XB0F28697 1
Lenovo ThinkServer RAID 720i 4GB Modular Flash and Supercapacitor Upgrade 4XB0F28698 1
Lenovo ThinkServer RD550 (E5-2600 v4) 13

The following table summarizes features of supported storage controllers.
Table 8. Storage controller features and specifications summary
Feature RAID 110i
RAID 510i
AnyRAID
RAID 520i
PCIe
RAID 720i
PCIe
RAID 720i
AnyRAID
RAID 720ix
AnyRAID
Part number None 4XB0F28691 4XC0G88850 4XC0G88849 4XC0G88838 4XC0G88839
Form factor Onboard AnyRAID Low profile Low profile AnyRAID AnyRAID
Controller chip Not
applicable
LSI SAS2008 LSI SAS3008 LSI SAS3108 LSI SAS3108 LSI SAS3108
Host interface Not
applicable
PCIe 2.0 x8 PCIe 3.0 x8 PCIe 3.0 x8 PCIe 3.0 x8 PCIe 3.0 x8
Port interface 6 Gbps SATA 6 Gbps SAS 12 Gbps SAS 12 Gbps SAS 12 Gbps SAS 12 Gbps SAS
Number of
internal ports
8 8 8 8 8 8
Internal port
connectors
2x SATA x4 Backplane
connector
2x Mini-SAS
HD x4
(SFF-8643)
2x Mini-SAS
HD x4
(SFF-8643)
Backplane
connector
Backplane
connector
Drive interface SATA SAS, SATA SAS, SATA SAS, SATA SAS, SATA SAS, SATA
Drive type HDD, SSD HDD, SSD HDD, SSD HDD, SSD HDD, SSD HDD, SSD
Drive form factor SFF, LFF,
M.2
SFF, LFF, M.2 SFF, LFF SFF, LFF SFF, LFF, M.2 SFF, M.2
Number of drives 8* 8 8 8 8 26**
RAID levels 0/1/10;
Optional 5
(4XB0F28690)
0/1/10;
Optional 5/50
(4XB0F28692)
0/1/10;
Optional 5/50
(4XC0G88841)
0/1/10/5/50;
Optional 6/60 with any cache upgrade
JBOD mode Yes Yes Yes Yes (without cache) Yes***
Cache None None None 1 GB non-backed (4XB0F28695)****
1 GB flash-backed (4XB0F28696)****
2 GB flash-backed (4XB0F28697)****
4 GB flash-backed (4XB0F28698)****
FastPath No No No Yes (with flash-backed cache)
CacheCade Pro
2.0
No No No Yes (with flash-backed cache)
* Up to 6 drives can be configured in a RAID array, and the remaining two drives operate in JBOD mode.
** Includes SAS Expander.
*** JBOD mode is supported only with the non-backed cache.
**** A cache upgrade is required for the 720ix AnyRAID adapter operations, and it must be purchased together with the
controller.
Important:
A cache upgrade is required for the 720ix AnyRAID adapter operations, and it must be purchased
together with the controller.
RAID 110i is not supported by virtualization hypervisors, including VMware vSphere (ESXi), Linux
KVM, Xen, and Microsoft Hyper-V.
Lenovo ThinkServer RD550 (E5-2600 v4) 14

The following table lists supported drive bay configurations, drive types, and RAID controllers.
Table 9. Drive bay configurations, drive types, and storage controllers
Drive bays
Front drives (HDDs and SSDs)
8x 2.5-in. SAS/SATA (PCIe RAID) No Yes* No Yes Yes No No No
8x 2.5-in. SAS/SATA (AnyRAID) Yes* No Yes No No Yes Yes No
12x 2.5-in. SAS/SATA No No No No No No Yes No
10x 2.5-in. SAS/SATA + 2x 2.5-in. AnyBay No No No No No No Yes Yes†
4x 3.5-in. SAS/SATA Yes* No Yes Yes Yes Yes Yes No
Rear drives (HDDs and SSDs)
2x 2.5-in. SATA No No No No No No Yes# No
M.2 storage module
2x M.2 SSDs Yes§ No Yes‡ No No Yes‡ Yes** No
* Supports SATA HDDs and SSDs only; up to 6 drives in a RAID array, and the remaining drives operate in JBOD mode.
† Requires the AnyBay Enablement Kit (4XF0G88927).
# Requires the Rear Backplane Kit (4XF0G45877); supported in 3.5" chassis only; not supported with the M.2 drives.
§ Requires the M.2 Enablement Kit to Motherboard (4XF0G45892); not supported with the rear drives or in the 2.5" chassis.
‡ Requires the M.2 Enablement Kit for 3.5" Chassis (4XF0G45890); not supported with the rear drives or in the 2.5" chassis.
** Requires the 2.5" Chassis M.2 Enablement Kit to RAID720ix (4XF0G45889); not supported with the rear drives.
Drives for internal storage
The RD550 server supports the internal drive options that are listed in the following tables.
Table 10. Internal drive options: 3.5-inch drives
Description Part number
Maximum
supported
3.5-inch hot-swap HDDs (2.5-inch HDDs in 3.5-inch drive trays) - 12 Gbps SAS
ThinkServer Gen 5 2.5" 300GB 10K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88733 4
ThinkServer Gen 5 2.5" 300GB 15K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88740 4
ThinkServer Gen 5 2.5" 450GB 15K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88744 4
ThinkServer Gen 5 2.5" 600GB 10K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88761 4
ThinkServer Gen 5 2.5" 600GB 15K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88746 4
ThinkServer Gen 5 2.5" 900GB 10K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88762 4
ThinkServer Gen 5 2.5" 1.2TB 10K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88763 4
ThinkServer Gen 5 2.5" 1.8TB 10K Enterprise SAS 12Gbps HS HDD in 3.5" tray 4XB0G88738 4
3.5-inch hot-swap HDDs (2.5-inch HDDs in 3.5-inch drive trays) - 6 Gbps SAS
ThinkServer Gen 5 2.5" 300GB 10K Enterprise SAS 6Gbps HS HDD in 3.5" tray 4XB0G88728 4
ThinkServer Gen 5 2.5" 600GB 10K Enterprise SAS 6Gbps HS HDD in 3.5" tray 4XB0G88729 4
ThinkServer Gen 5 2.5" 900GB 10K Enterprise SAS 6Gbps HS HDD in 3.5" tray 4XB0G88742 4
RAID 110i (AnyRAID) RAID 110i (direct cabling) RAID 510i AnyRAID RAID 520i PCIe RAID 720i PCIe RAID 720i AnyRAID RAID 720ix AnyRAID PCIe Interposer
Lenovo ThinkServer RD550 (E5-2600 v4) 15

3.5-inch hot-swap HDDs - 12 Gbps NL SAS
ThinkServer Gen 5 3.5" 1TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512N) 4XB0K12270 4
ThinkServer Gen 5 3.5" 2TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512N) 4XB0K12278 4
ThinkServer Gen 5 3.5" 2TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512E) 4XB0G88730 4
ThinkServer Gen 5 3.5" 4TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512N) 4XB0K12279 4
ThinkServer Gen 5 3.5" 4TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512E) 4XB0G88731 4
ThinkServer Gen 5 3.5" 6TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512E) 4XB0G88715 4
ThinkServer Gen 5 3.5" 8TB 7.2K Enterprise SAS 12Gbps Hot Swap HDD (512E) 4XB0K12254 4
ThinkServer Gen 5 3.5" 10TB 7.2K Enterprise SAS 12Gbps HS 512e HDD 4XB0K12312 4
3.5-inch hot-swap HDDs - 6 Gbps NL SAS
ThinkServer Gen 5 3.5" 1TB 7.2K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45716 4
ThinkServer Gen 5 3.5" 2TB 7.2K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45717 4
ThinkServer Gen 5 3.5" 3TB 7.2K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45718 4
ThinkServer Gen 5 3.5" 4TB 7.2K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45719 4
3.5-inch hot-swap HDDs - 6 Gbps NL SATA
ThinkServer Gen 5 3.5" 1TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0F28712 4
ThinkServer Gen 5 3.5" 2TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0F28713 4
ThinkServer Gen 5 3.5" 3TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0F28714 4
ThinkServer Gen 5 3.5" 4TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0G45715 4
ThinkServer Gen 5 3.5" 5TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0G88712 4
ThinkServer Gen 5 3.5" 6TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0G88713 4
ThinkServer Gen 5 3.5" 8TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0K12255 4
ThinkServer Gen 5 3.5" 10TB 7.2K Enterprise SATA 6Gbps HS 512e HDD 4XB0K12313 4
3.5-inch hot-swap SSDs - Enterprise Performance 12 Gbps SAS
ThinkServer Gen 5 3.5" 200GB Enterprise Performance SAS 12Gbps Hot Swap SSD 4XB0G45733 4
ThinkServer Gen 5 3.5" 400GB Enterprise Performance SAS 12Gbps Hot Swap SSD 4XB0G45734 4
ThinkServer Gen 5 3.5" 800GB Enterprise Performance SAS 12Gbps Hot Swap SSD 4XB0G45735 4
3.5-inch hot-swap SSDs - Enterprise Mainstream 12 Gbps SAS
ThinkServer 3.5" 400GB PM1635 Enterprise Mainstream 12Gb SAS HS SSD 4XB0K12261 4
ThinkServer 3.5" 800GB PM1635 Enterprise Mainstream 12Gb SAS HS SSD 4XB0K12262 4
ThinkServer 3.5" 1.6TB PM1635 Enterprise Mainstream 12Gb SAS HS SSD 4XB0K12263 4
3.5-inch hot-swap SSDs - Mainstream 6 Gbps SATA
ThinkServer Gen 5 3.5'' 480GB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88767 4
ThinkServer Gen 5 3.5'' 800GB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88769 4
ThinkServer Gen 5 3.5'' 1.2TB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88771 4
ThinkServer Gen 5 3.5'' 1.6TB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88773 4
3.5-inch hot-swap SSDs - Entry 6 Gbps SATA
ThinkServer Gen 5 3.5" 120GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88777 4
ThinkServer Gen 5 3.5" 240GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88779 4
ThinkServer Gen 5 3.5" 480GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88781 4
ThinkServer Gen 5 3.5" 800GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88783 4
Description Part number
Maximum
supported
Lenovo ThinkServer RD550 (E5-2600 v4) 16

ThinkServer 3.5" 960GB PM863 Enterprise Entry SATA 6Gbps Hot Swap SSD 4XB0K12256 4
Description Part number
Maximum
supported
Table 11. Internal drive options: 2.5-inch drives
Description Part number
Maximum
supported
2.5-inch hot-swap HDDs - 12 Gbps SAS
ThinkServer Gen 5 2.5" 300GB 10K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88732 12
ThinkServer Gen 5 2.5" 300GB 15K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88739 12
ThinkServer Gen 5 2.5" 450GB 15K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88743 12
ThinkServer Gen 5 2.5" 600GB 10K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88734 12
ThinkServer Gen 5 2.5" 600GB 15K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88765 12
ThinkServer Gen 5 2.5" 900GB 10K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88735 12
ThinkServer Gen 5 2.5" 1.2TB 10K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88736 12
ThinkServer Gen 5 2.5" 1.8TB 10K Enterprise SAS 12Gbps Hot Swap HDD 4XB0G88737 12
2.5-inch hot-swap HDDs - 6 Gbps SAS
ThinkServer Gen 5 2.5" 300GB 10K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45722 12
ThinkServer Gen 5 2.5" 300GB 15K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45727 12
ThinkServer Gen 5 2.5" 450GB 15K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45728 12
ThinkServer Gen 5 2.5" 600GB 10K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45723 12
ThinkServer Gen 5 2.5" 600GB 15K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45729 12
ThinkServer Gen 5 2.5" 900GB 10K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45724 12
ThinkServer Gen 5 2.5" 1.2TB 10K Enterprise SAS 6Gbps Hot Swap HDD 4XB0G45725 12
2.5-inch hot-swap HDDs - 6 Gbps NL SATA
ThinkServer Gen 5 2.5" 500GB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0G45720 12
ThinkServer Gen 5 2.5" 1TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0G45721 12
ThinkServer Gen 5 2.5'' 2TB 7.2K Enterprise SATA 6Gbps Hot Swap HDD 4XB0G88774 12
2.5-inch hot-swap SSDs - Enterprise Performance 12 Gbps SAS
ThinkServer Gen 5 2.5" 200GB Enterprise Performance SAS 12Gbps Hot Swap SSD 4XB0G45730 12
ThinkServer Gen 5 2.5" 400GB Enterprise Performance SAS 12Gbps Hot Swap SSD 4XB0G45731 12
ThinkServer Gen 5 2.5" 800GB Enterprise Performance SAS 12Gbps Hot Swap SSD 4XB0G45732 12
2.5-inch hot-swap SSDs - Enterprise Mainstream 12 Gbps SAS
ThinkServer 2.5" 400GB PM1635 Enterprise Mainstream 12Gb SAS HS SSD 4XB0K12258 12
ThinkServer 2.5" 800GB PM1635 Enterprise Mainstream 12Gb SAS HS SSD 4XB0K12259 12
ThinkServer 2.5" 1.6TB PM1635 Enterprise Mainstream 12Gb SAS HS SSD 4XB0K12260 12
2.5-inch hot-swap SSDs - Mainstream 6 Gbps SATA
ThinkServer Gen 5 2.5''480GB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88766 12
ThinkServer Gen 5 2.5''800GB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88768 12
ThinkServer Gen 5 2.5''1.2TB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88770 12
ThinkServer Gen 5 2.5''1.6TB Mainstream SATA 6Gbps Hot Swap SSD 4XB0G88772 12
2.5-inch hot-swap SSDs - Enterprise Entry 6 Gbps SATA
ThinkServer 2.5" 120GB PM863 Enterprise Entry SATA 6Gbps HS SSD 4XB0K12264 12
Lenovo ThinkServer RD550 (E5-2600 v4) 17

ThinkServer 2.5" 240GB PM863 Enterprise Entry SATA 6Gbps HS SSD 4XB0K12265 12
ThinkServer 2.5" 480GB PM863 Enterprise Entry SATA 6Gbps HS SSD 4XB0K12266 12
ThinkServer 2.5" 960GB PM863 Enterprise Entry SATA 6Gbps HS SSD 4XB0K12257 12
2.5-inch hot-swap SSDs - Entry 6 Gbps SATA
ThinkServer Gen 5 2.5" 120GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88776 12
ThinkServer Gen 5 2.5" 240GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88778 12
ThinkServer Gen 5 2.5" 480GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88780 12
ThinkServer Gen 5 2.5" 800GB Entry SATA 6Gbps Hot Swap SSD 4XB0G88782 12
2.5-inch EasySwap SSDs for AnyBay - Enterprise Performance PCIe 3.0
ThinkServer G5 2.5" 400GB Enterprise Perf. PCIe 3.0 Easy Swap SSD for AnyBay 4XB0G45748 2
ThinkServer G5 2.5" 800GB Enterprise Perf. PCIe 3.0 Easy Swap SSD for AnyBay 4XB0G45749 2
ThinkServer G5 2.5" 1.6TB Enterprise Perf. PCIe 3.0 Easy Swap SSD for AnyBay 4XB0G45750 2
Description Part number
Maximum
supported
Table 12. Internal drive options: M.2 SSDs and SD cards
Description Part number
Maximum
supported
M.2 SSDs
ThinkServer M.2 80GB Value Read-Optimized SATA 6Gbps SSD 4XB0G88741 2
ThinkServer M.2 120GB Value Read-Optimized SATA 6Gbps SSD 4XB0F28656 2
SD cards
ThinkServer 8GB SD Card 4X70F28592 2
ThinkServer 32GB SD Card 4X70F28593 2
Lenovo ThinkServer RD550 (E5-2600 v4) 18

Optical drives
The RD550 server models with 3.5-inch drives support the optical drive options listed in the following
table. Server models with 2.5-inch drive bays do not support an internal optical drive; a supported external
optical drive listed in the following table can be used instead.
Table 13. Optical drives
Description Part number
Maximum
supported
Internal optical drives
Lenovo ThinkServer Slim SATA DVD-RW Optical Disk Drive 4XA0F28607 1
Lenovo ThinkServer Slim SATA DVD-ROM Optical Disk Drive 4XA0F28608 1
External USB optical drives
ThinkPad UltraSlim USB DVD Burner 4XA0E97775 1
The Slim SATA DVD-RW Optical Disk Drive and the USB DVD Burner support the following types of media:
CD-R, CD-ROM, CD-RW, DVD-R, DVD-R (dual-layer recording), DVD-RAM, DVD-RW, DVD+R, DVD+R
(dual-layer recording), and DVD+RW.
The Slim SATA DVD-ROM Optical Disk Drive supports the following types of media: CD-R, CD-ROM, DVD-
R, DVD-R (dual-layer recording), DVD+R, DVD+R (dual-layer recording).
I/O expansion
The RD550 server supports up to two AnyFabric slots and up to three PCIe slots with riser cards that are
installed into two riser sockets on the system planar (one riser socket supports installation of one riser
card). The slot form factors are as follows:
Up to five slots for 2.5-inch drive bay models:
AnyFabric slot 1 (PCIe 3.0 x8) (system planar)
AnyFabric slot 2 (PCIe 3.0 x8) (system planar)
PCIe slot 1: PCIe 3.0 x8; low profile (Riser card 1)
PCIe slot 2: PCIe 3.0 x8; low profile (Riser card 1)
PCIe slot 3: PCIe 3.0 x16; low profile (Riser card 2; requires the second CPU to be installed)
Up to three slots 3.5-inch drive bays models:
AnyFabric slot (PCIe 3.0 x8) (system planar)
PCIe slot 1: PCIe 3.0 x16; low profile (Riser card 1)
PCIe slot 2: PCIe 3.0 x16; low profile (Riser card 2; requires the second CPU to be installed)
Lenovo ThinkServer RD550 (E5-2600 v4) 19

The locations of the expansion slots are shown in the following figure.
Figure 9. Slot locations
The following table lists the available PCIe riser card options.
Table 14. PCIe riser card options
Description Part number
Maximum
supported
Riser card slot 1
Lenovo ThinkServer 1U x8/x8 PCIe Riser Kit (for 2.5-inch drive bay models) 4XF0G45880 1
Lenovo ThinkServer 1U x16 PCIe Riser 2 Kit (for 3.5-inch drive bay models) 4XF0G45878 1
Riser card slot 2 (Requires the second CPU to be installed)
Lenovo ThinkServer 1U x16 PCIe Riser 1 Kit 4XF0G45879 1
Serial port
The COM Cable option, SBB0J78877, is available via CTO for mounting the external serial port on the rear
of the RD550 server, if needed.
For server models with 2.5-inch drive bays, the COM Cable option is mounted in place of the PCIe slot 3,
and only PCIe slots 1 and 2 remain available.
For server models with 3.5-inch drive bays, the COM Cable option is mounted in place of the PCIe slot 2,
and only one PCIe slot (slot 1) remains available.
Lenovo ThinkServer RD550 (E5-2600 v4) 20