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The Lenovo ThinkSystem SR665 V3 is a 2U rack server for one or two AMD EPYC processors, either 5th Gen 9005 (Turin) or 4th Gen 9004 (Genoa). Machine types are 7D9B and 7D9A. Processors reach up to 160 cores, core speeds of up to 4.1 GHz and TDP ratings of up to 400 W, with PCIe 5.0 I/O.
Memory is 24 DIMM slots with two processors, 12 per processor, at 1 DIMM per channel across 12 memory channels per processor. Lenovo TruDDR5 RDIMMs, 3DS RDIMMs and 9x4 RDIMMs are supported at speeds up to 6400 MHz with 5th Gen processors. The maximum is 6 TB with 24 x 256GB 3DS RDIMMs. Persistent memory is not supported.
Drive bays total up to 20 x 3.5-inch or 40 x 2.5-inch hot-swap, across front, middle and rear positions, in SAS/SATA, NVMe or AnyBay combinations. Two 7mm rear drives or an internal M.2 module with up to two M.2 drives can hold the boot volume.
Expansion is up to 12 PCIe slots (10 rear, 2 front) plus a dedicated OCP 3.0 slot with a PCIe 5.0 x16 host interface. Cooling is up to six N+1 redundant hot-swap 60 mm fans. The server measures 445 mm wide, 87 mm high and 766 mm deep (17.5 x 3.4 x 30.1 in.) and weighs up to 38.8 kg (85.5 lb).
| Model | ThinkSystem SR665 V3 |
| Machine types | 7D9A, 7D9B |
| Form factor | 2U rack |
| Processors | one or two AMD EPYC 9005 or 9004 |
| Max cores | up to 160 per processor |
| Memory | 24 DIMM slots, DDR5 up to 6400 MHz, up to 6 TB |
| Drive bays | up to 20 x 3.5-inch or 40 x 2.5-inch hot-swap |
| PCIe slots | up to 12 plus OCP 3.0 |
| Fans | up to six N+1 hot-swap 60 mm |
| Dimensions (W x H x D) | 445 x 87 x 766 mm |
| Weight | up to 38.8 kg |