Lenovo ThinkSystem SR635 V3 - Page 14

Memory
See
“Memory module installation rules and order” on page 49 for detailed information about memory configuration and
setup.
• Slots: 12 memory module (DIMM) slots
• Memory module type:
– TruDDR5 4800MHz RDIMM: 16 GB (1Rx8), 32 GB (2Rx8)
– TruDDR5 4800MHz 10x4 RDIMM: 32 GB (1Rx4), 64 GB (2Rx4)
– TruDDR5 4800MHz 9x4 RDIMM: 32 GB (1Rx4), 64 GB (2Rx4)
– TruDDR5 4800MHz 3DS RDIMM: 128 GB (4Rx4)
• Capacity:
– Minimum: 16 GB (1 x 16 GB RDIMM)
– Maximum: 1.5 TB (12 x 128 GB 3DS RDIMMs)
• Speed:
– The operating speed varies with specific processor models and UEFI settings.
– Maximum speed: 4800 MT/s
For a list of supported memory modules, see
https://serverproven.lenovo.com.
Internal drives
• Front:
– Up to four 2.5-inch hot-swap SAS/SATA drives
– Up to four 2.5-inch hot-swap NVMe drives
– Up to four 2.5-inch hot-swap AnyBay drives
– Up to eight 2.5-inch hot-swap SAS/SATA drives
– Up to six 2.5-inch hot-swap SAS/SATA and four 2.5-inch hot-swap AnyBay (SAS/SATA/NVMe) drives
– Up to six 2.5-inch hot-swap SAS/SATA and two 2.5-inch hot-swap AnyBay (SAS/SATA/NVMe) and two 2.5-inch
hot-swap NVMe drives
– Up to ten 2.5-inch hot-swap NVMe drives
– Up to ten 2.5-inch hot-swap SAS/SATA drives
– Up to ten 2.5-inch hot-swap AnyBay (SAS/SATA/NVMe) drives
– Up to 16 hot-swap EDSFF drives
• Internal:
Up to two internal SATA or NVMe M.2 drives
• Rear:
– Up to two 2.5-inch hot-swap SAS/SATA drives
– Up to two 2.5-inch hot-swap NVMe drives
– Up to two 7mm hot-swap SATA or NVMe drives
Expansion slots
Depending on the model, your server supports up to three PCIe slots in the rear.
• PCIe x16, low-profile
• PCIe x16/x16, low-profile + low-profile
• PCIe x16/x16, low profile + full-height
• PCIe x16, full-height
PCIe slot availability is based on riser selection. See
“Rear view” on page 23 and “PCIe slots and adapters” on page
50.
4 ThinkSystem SR635 V3 User Guide