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ThinkSystem SR635 V3 · Data Sheet
AMD EPYC 1-SOCKET1U RACK1-SOCKET
SPECS VERIFIED · LENOVO PRESSConfigure & quote →
0cores
AMD EPYC · 1 socket
0TB
TruDDR5-6400
0bays
E1.S / 2.5″ NVMe
0GPUs
single-wide 75W
0slots
PCIe 5.0 + OCP 3.0
0W
80+ Titanium
⚡ PROCESSOR AMD · 4 options
core count
9845
160C
9654
96C
9554
64C
9354
32C
1× AMD EPYC — 5th Gen 9005 “Turin” / 4th Gen 9004 “Genoa” · up to 160C · 4.1 GHz · 400W · PCIe 5.0. Representative options — see the configurator for the full orderable list.
🧠 MEMORY 12 × TruDDR5-6400
3 TBmax
RDIMM3DS RDIMM9x4 RDIMM
⚙ STORAGE & I/O
10× 2.5″ or 16× E1.S EDSFF front hot-swap + 2× 2.5″ or 2× 7mm rear
Fabric: OCP 3.0 SFF (PCIe 5.0 x16) · 1/10/25GbE adapters
Mgmt: XClarity Controller 2 (XCC2)
▤ FULL TECHNICAL BREAKDOWN— every subsystem, verified against the Lenovo Press product guide
Chassis & Physical
Form factor1U rack
Machine type7D9H (1yr) / 7D9G (3yr)
Dimensions440 mm W × 43 mm H × 773 mm D
WeightUp to 20.2 kg (44.6 lb)
Processor
CPUOne AMD EPYC (9005 “Turin” / 9004 “Genoa”)
Max configUp to 160 cores · 4.1 GHz · 400W
I/OPCIe 5.0
Memory
Slots12 DIMM (12 channels × 1 DPC)
TypeTruDDR5 RDIMM / 3DS RDIMM / 9x4 RDIMM
SpeedUp to 6400 MHz (5th Gen) · 4800 MHz (4th Gen)
Maximum3 TB with 12× 256GB 3DS RDIMMs
ProtectionECC, SDDC, Patrol Scrub, Bounded Fault, PPR, on-die ECC
Storage
Front baysUp to 10× 2.5″ or 16× E1.S EDSFF
Rear2× 2.5″ or 2× 7mm
Max internal737 TB (12× 61.44TB NVMe)
Controllers16 onboard NVMe · 12 SATA · 8/16-port RAID (8GB cache) · HBA
GPU support
OptionsUp to 5× single-width GPUs (75W each)
Expansion (PCIe)
SlotsUp to 3 rear + 2 front + dedicated OCP 3.0
GenerationMix of PCIe Gen5 / Gen4
Networking
OCPDedicated OCP 3.0 SFF slot, PCIe 5.0 x16
Adapters2/4-port 1 / 10 / 25GbE
Ports & Video
Front1× USB 3.1 Gen1, 1× USB 2.0, external diagnostics, optional VGA
Rear3× USB 3.1 Gen1, VGA, 1GbE XCC
Power & Cooling
Power suppliesUp to 2× hot-swap 750 / 1100 / 1800W AC, 80 PLUS Platinum / Titanium
CoolingUp to 7× N+1 hot-swap 40mm fans · closed-loop liquid-cooling option
Management
ControllerXClarity Controller 2 (XCC2), AST2600 BMC
SuiteXClarity One · optional 2nd redundant mgmt port
🛡Security
Root of TrustTPM 2.0 RoT module, Platform Firmware Resiliency (PFR)
AMDSecure Root-of-Trust, Secure Run, Secure Move, Secure Boot (PSB)
Operating systems
SupportedWindows Server, RHEL, SUSE Linux, VMware ESXi, Ubuntu Server
Warranty & Support
Base3-year CRU + onsite, 9×5 NBD
Upgrades4h / 2h response, 6h fix, warranty extensions
Best for:AI inference · VDI · OLTP · Analytics · HPC · Software-defined storage
Build this server →

About the ThinkSystem SR635 V3

The Lenovo ThinkSystem SR635 V3 is a 1-socket 1U rack server built on the AMD EPYC 9004 “Genoa” and 9005 “Turin” families — up to 160 cores from a single processor with full PCIe 5.0 connectivity, delivering exceptional density and core-per-watt efficiency.

With 12 TruDDR5 DIMM channels at up to 6400 MHz, up to 16× E1.S or 10× 2.5″ NVMe drives and up to 5 single-width GPUs, it suits dense inference, VDI, OLTP, analytics, HPC and software-defined storage. Servnet configures, prices and supplies the SR635 V3 in the UK, verified against the Lenovo Press product guide.

Configure & get a quote →Lenovo Press product guide ↗
💷 Spread the cost · IT finance

Spread the cost of the ThinkSystem SR635 V3

Prefer to pay monthly? Spread the ThinkSystem SR635 V3 over 60 months on hire purchase or lease — indicative from £129/mo ex VAT. Configure your exact spec and we'll quote the finance alongside the hardware.

Finance the ThinkSystem SR635 V3 from £129/mo

Indicative estimate · subject to change · soft search, no credit-file impact · hire purchase, lease & subscription for UK businesses

From
£129/mo
over 60 months · ex VAT · indicative estimate, subject to change

ThinkSystem SR635 V3 — FAQs

What processor does the SR635 V3 use?

A single AMD EPYC processor from the 5th Gen 9005 “Turin” or 4th Gen 9004 “Genoa” family, with up to 160 cores, speeds to 4.1 GHz, TDP up to 400W and PCIe 5.0 support.

How much memory and storage does it hold?

Up to 12 TruDDR5 DIMM slots (12 channels, 1 DIMM per channel) for a maximum of 3TB with 256GB 3DS RDIMMs, and up to 16× E1.S EDSFF or 10× 2.5″ NVMe front drives plus rear bays.

Can the SR635 V3 run GPUs?

Yes — up to 5 single-width (75W) GPUs, making it a strong 1U platform for AI inference and accelerated VDI.

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