About the Lenovo ThinkSystem SR685a V3
The Lenovo ThinkSystem SR685a V3 is an 8U dual-socket flagship built for the most compute-intensive generative AI. It pairs two 5th Gen AMD EPYC 9005 'Turin' (up to 128 cores, 400W) or 4th Gen 9004 'Genoa' (up to 96 cores, 360W) processors with an NVIDIA HGX baseboard carrying eight H100 (80GB HBM3) or H200 (141GB HBM3e) SXM5 GPUs, linked by 900 GB/s NVLink and PCIe Gen5 for fast GPU-to-GPU communication. An AMD Instinct MI300X 192GB OAM configuration is also available for teams standardising on that accelerator.
Around the accelerators sit 24 TruDDR5 DIMM slots (up to 3TB at 6400 MHz), 16 hot-swap PCIe 5.0 NVMe bays, and ten PCIe 5.0 x16 slots including eight front FHHL slots with GPU Direct for 400Gb NVIDIA ConnectX-7 and Broadcom fabrics. Up to eight 2600W 80 PLUS Titanium supplies deliver up to N+N redundancy, with XClarity Controller 2 management and TPM 2.0 / PFR security. Servnet configures, prices and supplies the SR685a V3 in the UK, with every specification here verified against the Lenovo Press product guide.
Lenovo ThinkSystem SR685a V3 — FAQs
How many GPUs does the SR685a V3 support and which models?
It carries an NVIDIA HGX baseboard with eight SXM5 GPUs - either NVIDIA H100 (80GB HBM3) or H200 (141GB HBM3e), each rated 700W. An alternative configuration offers eight AMD Instinct MI300X 192GB OAM GPUs (750W). With eight H200s the server provides roughly 1.13TB of total GPU memory.
What processors and memory does it use?
The server requires two AMD EPYC processors - 5th Gen 9005 'Turin' (up to 128 cores, 400W) or 4th Gen 9004 'Genoa' (up to 96 cores, 360W). It has 24 TruDDR5 DIMM slots (12 per CPU) supporting up to 3TB, running at up to 6400 MHz with 5th Gen and 4800 MHz with 4th Gen processors.
What are the storage, networking and power options?
Storage is up to 16x 2.5-inch hot-swap PCIe 5.0 NVMe drives (max 245.76TB) plus an M.2 boot adapter with RAID-1. Networking uses front FHHL PCIe 5.0 slots with GPU Direct for 400Gb NVIDIA ConnectX-7/Broadcom adapters and an OCP 3.0 slot. Power comes from up to eight 2600W 80 PLUS Titanium supplies with up to N+N redundancy.
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