Technical specifications

Summary of the technical specifications of the server. Depending on the model, some features might not be available, or some specifications might not apply.

Processor
Supports multi-core Intel^® Xeon^® processors, with integrated memory controller and Intel Mesh UPI (Ultra Path Interconnect) topology. Up to two Intel^® Xeon^® 6 processors with P-cores (Granite Rapids-SP, GNR-SP) or E-cores (Sierra Forest-SP, SRF-SP) with new LGA 4710 socket Up to 86 cores per socket for GNR-SP and 144 cores per socket for SRF-SP Up to four UPI links at up to 24 GT/s Thermal Design Power (TDP): up to 350 watts For a list of supported processors, see: Lenovo ServerProven website.

Processor

Supports multi-core Intel^® Xeon^® processors, with integrated memory controller and Intel Mesh UPI (Ultra Path Interconnect) topology.

Up to two Intel^® Xeon^® 6 processors with P-cores (Granite Rapids-SP, GNR-SP) or E-cores (Sierra Forest-SP, SRF-SP) with new LGA 4710 socket
Up to 86 cores per socket for GNR-SP and 144 cores per socket for SRF-SP
Up to four UPI links at up to 24 GT/s
Thermal Design Power (TDP): up to 350 watts

For a list of supported processors, see: Lenovo ServerProven website.

Memory
See Memory module installation rules for detailed information about memory configuration and setup. For a list of supported memory options, see Lenovo ServerProven website. Note MRDIMMs and CMMs are supported only in configurations with P-cores series processors. The operating speed depends on processor model and UEFI settings. CXL memory modules are not supported with Windows Server and VMware ESXi. For specifics, see https://lenovopress.lenovo.com/osig#servers=sr650-v4-xeon-6-p-cores-7dgc-7dgd-7dk2&os_families=microsoft-windows-server&os_families=vmware-esxi&support=all.
Slots	Servers without Compute Complex Neptune Core Module	32 dual inline memory module (DIMM) connectors that support up to 32 TruDDR5 DIMMs
Slots	Servers with Compute Complex Neptune Core Module	16 dual inline memory module (DIMM) connectors that support up to 16 TruDDR5 DIMMs
Memory module types	TruDDR5 6400MHz RDIMMs	16 GB (1Rx8), 32 GB (2Rx8), 48 GB (2Rx8)
	TruDDR5 6400MHz 10x4 RDIMMs	32 GB (1Rx4), 64 GB (2Rx4), 96 GB (2Rx4), 128 GB (2Rx4)
	TruDDR5 6400MHz 3DS RDIMMs	256 GB (4Rx4)
	TruDDR5 8800MHz MRDIMMs	32 GB (2Rx8), 64 GB (2Rx4)
	CXL memory modules	96 GB, 128 GB
Speed	6400 MHz RDIMMs	1 DPC: 6400 MT/s 2 DPC: 5200 MT/s
Speed	8800 MHz RDIMMs	1 DPC: 8000 MT/s
Capacity	Servers without Compute Complex Neptune Core Module	Minimum: 16 GB Maximum: 8 TB: 32 x 256 GB 3DS RDIMMs
Capacity	Servers with Compute Complex Neptune Core Module	Minimum: 32 GB: 2 x 16 GB Maximum: 4 TB: 16 x 256 GB 3DS RDIMMs

Internal drives
Front	For the servers *without* Compute Complex Neptune Core Module: Up to four 2.5-inch hot-swap SAS/SATA/NVMe drives Up to four 2.5-inch hot-swap SAS/SATA/NVMe drives and two front M.2 hot-swap SAS/SATA/NVMe drives Up to eight 2.5-inch hot-swap AnyBay/U.3/SAS/SATA/NVMe drives Up to eight 2.5-inch hot-swap U.3/SAS/SATA/NVMe drives and two front M.2 hot-swap SAS/SATA/NVMe drives Up to ten 2.5-inch hot-swap AnyBay/U.3/SAS/SATA/NVMe drives Up to six 2.5-inch hot-swap SAS/SATA drives and four 2.5-inch hot-swap AnyBay drives Up to six 2.5-inch hot-swap SAS/SATA drives, two 2.5-inch hot-swap NVMe drives, and two 2.5-inch hot-swap AnyBay drives Up to 16 1T E3.S drives Up to eight 2T E3.S drives Up to 12 1T E3.S drives and two front M.2 hot-swap SAS/SATA/NVMe drives For the servers *with* Compute Complex Neptune Core Module: Up to four 2.5-inch hot-swap SAS/SATA/NVMe drives Up to eight 2.5-inch hot-swap U.3/SAS/SATA/NVMe drives Up to ten 2.5-inch hot-swap U.3/SAS/SATA/NVMe drives Up to 12 1T E3.S drives
Inside	Up to two internal M.2 non-hot-swap SAS/SATA/NVMe drives
Rear	For the servers *without* Compute Complex Neptune Core Module: Up to two 2.5-inch hot-swap U.3/SAS/SATA/NVMe drives Up to two M.2 hot-swap SAS/SATA/NVMe drives For the servers *with* Compute Complex Neptune Core Module: Up to two M.2 hot-swap SAS/SATA/NVMe drives

Expansion slots
Depending on the model, your server supports up to three PCIe slots in the rear. PCIe x16/x16, full-height + full-height PCIe x16/x16/x16, full-height + low-profile + low-profile PCIe x16/x16, full-height + low-profile PCIe x16, full-height Note For the servers with Compute Complex Neptune Core Module, only PCIe x16/x16, full-height + low-profile and PCIe x16, full-height are supported.

Graphics processing unit (GPU)
Your server supports the following GPUs: NVIDIA^® L4 (Half-length, single-wide) Note A GPU power cable connected to a riser card is needed when GPU power is greater than or equal to 75 W. For GPU supporting rules, see Thermal rules. The GPU cannot be installed when Compute Complex Neptune Core Module is installed.

Graphics processing unit (GPU)

Your server supports the following GPUs:

NVIDIA^® L4 (Half-length, single-wide)

Note

A GPU power cable connected to a riser card is needed when GPU power is greater than or equal to 75 W.
For GPU supporting rules, see Thermal rules.
The GPU cannot be installed when Compute Complex Neptune Core Module is installed.

Integrated functions and I/O connectors
Lenovo XClarity Controller (XCC), which provides service processor control and monitoring functions, video controller, and remote keyboard, video, mouse, and remote drive capabilities. The server supports Lenovo XClarity Controller 3 (XCC3). For additional information about Lenovo XClarity Controller 3 (XCC3), refer to Lenovo XClarity Controller portal page. One XCC system management port on the rear to connect to a systems-management network. This RJ-45 connector is dedicated to the Lenovo XClarity Controller functions and runs at 10/100/1000 Mbps speed. A group of two or four Ethernet connectors on OCP module Up to four USB 3.2 Gen1 (5 Gbps) ports: Two on the rear of the server ¹ (Optional) Two on the front of the server (including One USB 2.0 connector with XCC system management) One internal USB 3.2 Gen1 (5 Gbps) port External LCD diagnostics handset connector on the front of the server (Optional) One Mini DisplayPort on the front of the server ² One VGA connectors on the rear of the server (Optional) One serial port connector on the rear of the server ³ Note The lower USB connector at the rear functions as a USB 2.0 connector with XCC system management when there are no USB connectors at the front. The maximum video resolution is 1920 x 1200 at 60 Hz. Available when the serial port cable is installed in the server.

Integrated functions and I/O connectors

Lenovo XClarity Controller (XCC), which provides service processor control and monitoring functions, video controller, and remote keyboard, video, mouse, and remote drive capabilities.
- The server supports Lenovo XClarity Controller 3 (XCC3). For additional information about Lenovo XClarity Controller 3 (XCC3), refer to Lenovo XClarity Controller portal page.
One XCC system management port on the rear to connect to a systems-management network. This RJ-45 connector is dedicated to the Lenovo XClarity Controller functions and runs at 10/100/1000 Mbps speed.
A group of two or four Ethernet connectors on OCP module
Up to four USB 3.2 Gen1 (5 Gbps) ports:
- Two on the rear of the server ¹
- (Optional) Two on the front of the server (including One USB 2.0 connector with XCC system management)
One internal USB 3.2 Gen1 (5 Gbps) port
External LCD diagnostics handset connector on the front of the server
(Optional) One Mini DisplayPort on the front of the server ²
One VGA connectors on the rear of the server
(Optional) One serial port connector on the rear of the server ³

Note

The lower USB connector at the rear functions as a USB 2.0 connector with XCC system management when there are no USB connectors at the front.
The maximum video resolution is 1920 x 1200 at 60 Hz.
Available when the serial port cable is installed in the server.

Network
OCP module Note The server features two OCP slots: OCP 1 and OCP 2, which are located on the rear side. The installation priority of OCP slots in configurations with two processors is as follows: Configurations with only one OCP module: A x8 OCP module is installed in OCP slot 1; a x16 OCP module is installed in OCP slot 2. Configurations with two OCP modules: OCP slot 1 > OCP slot 2; x16 > x8 OCP module 1 take priority over OCP module 2.

Network

OCP module

Note

The server features two OCP slots: OCP 1 and OCP 2, which are located on the rear side.
The installation priority of OCP slots in configurations with two processors is as follows:
- Configurations with only one OCP module: A x8 OCP module is installed in OCP slot 1; a x16 OCP module is installed in OCP slot 2.
- Configurations with two OCP modules: OCP slot 1 > OCP slot 2; x16 > x8
OCP module 1 take priority over OCP module 2.

RAID support
Onboard NVMe ports with software RAID support (Intel VROC NVMe RAID) and JBOD Note Intel VROC Boot only supports two drives corresponding to the same controller and the same processor.
Description	RAID levels
Intel^® VROC standard	0, 1, 10
Intel^® VROC Premium	0, 1, 5, 10
Intel^® VROC Boot	1
ThinkSystem RAID 5350-8i PCIe 12Gb Adapter	0, 1, 5, 10
ThinkSystem RAID 9350-8i 2GB Flash PCIe 12Gb Adapter	0, 1, 5, 6, 10, 50, and 60
ThinkSystem RAID 9350-16i 4GB Flash PCIe 12Gb Adapter	0, 1, 5, 6, 10, 50, and 60
ThinkSystem RAID 940-8i 4GB Flash PCIe Gen4 12Gb Adapter	0, 1, 5, 6, 10, 50, and 60
ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Adapter	0, 1, 5, 6, 10, 50, and 60
ThinkSystem 4350-16i SAS/SATA 12Gb HBA	N/A
ThinkSystem 440-16i SAS/SATA PCIe Gen4 12Gb HBA	N/A
ThinkSystem 440-16i SAS/SATA PCIe Gen4 12Gb Internal HBA	N/A
ThinkSystem RAID 940-16i 8GB Flash PCIe Gen4 12Gb Internal Adapter	0, 1, 5, 6, 10, 50, and 60
ThinkSystem RAID 940-8e 4GB Flash PCIe Gen4 12Gb Adapter	0, 1, 5, 6, 10, 50, and 60
ThinkSystem RAID 545-8i PCIe Gen4 12Gb Adapter	0, 1, 10
ThinkSystem 440-16e SAS/SATA PCIe Gen4 12Gb HBA	N/A

System fan
Supported fan-pack types: Standard fan-pack 4056 (28000 RPM, single rotor) Performance fan-pack 4056 (28000 RPM, dual rotors) Ultra fan-pack 4056 (31000 RPM, dual rotors) Fan redundancy: N+1 redundancy, one redundant fan rotor One processor: three hot-swap dual-rotor system fan-packs (one redundant fan rotor) Two processors: four hot-swap dual-rotor system fan-packs (one redundant fan rotor) Note The redundant cooling by the fans in the server enables continued operation if one rotor fails. When the system is powered off but still plugged in to AC power, and XCC has detected that OCP modules are installed, fan-pack 2 and 3 may continue to spin at a much lower speed. This is the system design to provide proper cooling.

System fan

Supported fan-pack types:
- Standard fan-pack 4056 (28000 RPM, single rotor)
- Performance fan-pack 4056 (28000 RPM, dual rotors)
- Ultra fan-pack 4056 (31000 RPM, dual rotors)
Fan redundancy: N+1 redundancy, one redundant fan rotor
- One processor: three hot-swap dual-rotor system fan-packs (one redundant fan rotor)
- Two processors: four hot-swap dual-rotor system fan-packs (one redundant fan rotor)

Note

The redundant cooling by the fans in the server enables continued operation if one rotor fails.
When the system is powered off but still plugged in to AC power, and XCC has detected that OCP modules are installed, fan-pack 2 and 3 may continue to spin at a much lower speed. This is the system design to provide proper cooling.

Electrical input and power policy
Electrical input for power supply units Common Redundant Power Supply (CRPS) and CRPS Premium are supported as listed below: CAUTION 240 V dc input is supported in Chinese Mainland ONLY. Power supply with 240 V dc input cannot support hot plugging power cord function. Before removing the power supply with dc input, please turn off server or disconnect dc power sources at the breaker panel or by turning off the power source. Then, remove the power cord.
Power supply	100–127 V ac	200–240 V ac	240 V dc	-48 V dc	HVDC 240 -380V dc	HVAC 200 -277V ac	CRPS	CRPS Premium
800-watt 80 PLUS Platinum	√	√	√				√
1300-watt 80 PLUS Platinum	√	√	√				√
1300-watt -48V DC				√				√
1300-watt HVAC/HVDC 80 PLUS Platinum					√	√		√
800-watt 80 PLUS Titanium	√	√	√				√	√
1300-watt 80 PLUS Titanium	√	√	√				√	√
2000-watt 80 PLUS Titanium		√	√					√
Power policy for power supply units Following is one or two power supply units for redundancy or over-subscription (OVS) support: Note Only CRPS Premium PSUs support Over-subscriptions (OVS), Zero Output Mode, and Virtual-Reseat (VR). The following Lenovo XClarity Controller options are supported only when CRPS Premium PSUs are installed: Power Redundant options such as Zero Output Mode and Non-redundant. AC Power Cycle Server option under Power Action. Mixing of CRPS PSUs from different vendors are not supported. 1+0 indicates that the server has only one power supply unit installed and the system does not support power redundancy, while 1+1 indicates that two power supply units are installed and redundancy is supported.
Type		Watts			Redundancy		OVS
CRPS Premium		800-watt 80 PLUS Titanium			1+0	×	×
		800-watt 80 PLUS Titanium			1+1	√	√
		1300-watt 80 PLUS Titanium			1+0	×	×
		1300-watt 80 PLUS Titanium			1+1	√	√
		1300-watt -48V DC			1+1	√	√
		1300-watt HVAC/HVDC 80 PLUS Platinum			1+1	√	√
		2000-watt 80 PLUS Titanium			1+1	√	√
CRPS		800-watt 80 PLUS Platinum			1+1	√	×
		800-watt 80 PLUS Titanium			1+1	√	×
		1300-watt 80 PLUS Platinum			1+1	√	×
		1300-watt 80 PLUS Titanium			1+1	√	×

Minimal configuration for debugging
Servers without Compute Complex Neptune Core Module One processor in processor socket 1 One memory module in slot 7 One power supply unit One HDD/SSD drive, one M.2 drive (if OS is needed for debugging) Three system fan-packs (Fan-packs 1, 2, and 3) Servers with Compute Complex Neptune Core Module Two processors One memory module in slots 7 and 23 One power supply unit One HDD/SSD drive, one M.2 drive (if OS is needed for debugging) Four system fan-packs (Fan-packs 1, 2, 3, and 4)

Minimal configuration for debugging

Servers without Compute Complex Neptune Core Module
- One processor in processor socket 1
- One memory module in slot 7
- One power supply unit
- One HDD/SSD drive, one M.2 drive (if OS is needed for debugging)
- Three system fan-packs (Fan-packs 1, 2, and 3)
Servers with Compute Complex Neptune Core Module
- Two processors
- One memory module in slots 7 and 23
- One power supply unit
- One HDD/SSD drive, one M.2 drive (if OS is needed for debugging)
- Four system fan-packs (Fan-packs 1, 2, 3, and 4)

Operating systems
Supported and certified operating systems: Microsoft Windows Server Red Hat Enterprise Linux SUSE Linux Enterprise Server VMware ESXi Canonical Ubuntu References: Complete list of available operating systems: OS Interoperability Guide. OS deployment instructions: Follow the adopted combination to install memory modules (see Deploy the operating system).

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