Lenovo ThinkSystem SR665 V3 - Page 14

Memory
See
“Memory module installation rules and order” on page 51 for detailed information about memory configuration and
setup.
• Slots: 24 dual inline memory module (DIMM) slots (12 channels per processor, 1 DIMM per channel)
• Memory module types:
– TruDDR5 RDIMM: 16 GB (1Rx8), 32 GB (2Rx8), 96 GB (2Rx4)
– TruDDR5 10x4 RDIMM: 32 GB (1Rx4), 64 GB (2Rx4)
– TruDDR5 9x4 RDIMM: 32 GB (1Rx4), 64 GB (2Rx4)
– TruDDR5 3DS RDIMM: 128 GB (4Rx4), 256 GB (8Rx4)
• Capacity:
– Minimum: 16 GB (1 x 16 GB RDIMM)
– Maximum: 6 TB (24 x 256 GB 3DS RDIMM)
• Speed: 4800 MT/s
For a list of supported memory modules, see
https://serverproven.lenovo.com/.
Internal drives
• Front drive bays:
– Up to 24 x 2.5-inch hot-swap SAS/SATA/NVMe drives
– Up to 12 x 3.5-inch hot-swap SAS/SATA drives
– Up to 4 x 3.5-inch hot-swap NVMe drives
• Middle drive bays:
– Up to 8 x 2.5-inch hot-swap SAS/SATA/NVMe drives
– Up to 4 x 3.5-inch hot-swap SAS/SATA drives
• Rear drive bays:
– Up to 8 x 2.5-inch hot-swap SAS/SATA drives
– Up to 4 x 3.5-inch hot-swap SAS/SATA drives
– Up to 4 x 2.5-inch hot-swap NVMe drives
– Up to two 7mm drives
• Up to two internal M.2 drives
Expansion slots
• Up to 12 PCIe slots
• One OCP module slot
PCIe slot availability is based on riser selection and rear drive bay selection. See
“Rear view” on page 24 and “PCIe
slots and PCIe adapters” on page 54
.
4 ThinkSystem SR665 V3 User Guide