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Supermicro A+ GPU Server AS -8125GS-TNMR2

CurrentServers8U rack
Supermicro A+ GPU Server AS -8125GS-TNMR28U rack12 × SFF 2.5" bays24 DIMMs

The Supermicro AS -8125GS-TNMR2 is an 8U AI supercomputer integrating an 8-way NVIDIA HGX H100 SXM5 module alongside dual AMD EPYC 9004 series processors. Delivering massive GPU-to-GPU bandwidth over NVSwitch, 24 DDR5 DIMM slots, twelve hot-swap NVMe bays, and eight dedicated InfiniBand networking slots, it is built for massive parallel AI model training.

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Specifications

BrandSupermicro
FamilyA+ GPU Server
Form factor8U rack
ReleasedJun 2023
Form factor8U rack
Sockets2
Processor familyAMD EPYC 9004 Series
Memory slots24
Max memory6TB DDR5-4800
Gpu support8-way NVIDIA HGX H100 / H800 SXM5
Drive bays12x 2.5-inch hot-swap NVMe U.2
Power supplies6x 3000W Redundant Titanium

Generations

Works together

How the Supermicro A+ GPU Server AS -8125GS-TNMR2 connects to servers, storage and the network: 5 ways, with the parts and products on each path.

Fibre Channel SANiSCSI and NVMe/TCP over EthernetDirect-attached SASFile storage (NFS and SMB)GPU cluster fabric

Fibre Channel SAN

Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).

Switches

Storage

Optics

Fibre Channel SAN: how it fits together

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Adapters for the server (check the fit list)

Switches

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

Direct-attached SAS

12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.

Adapters for the server (check the fit list)

Storage

Direct-attached SAS: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Adapters for the server (check the fit list)

Switches

Storage

Optics

File storage (NFS and SMB): how it fits together

GPU cluster fabric

InfiniBand adapters and switches must match the generation: HDR is 200Gb, NDR is 400Gb. VPI adapters such as ConnectX-6 and ConnectX-7 can run either InfiniBand or Ethernet.

GPUs

Adapters for the server (check the fit list)

Switches

GPU cluster fabric: how it fits together

Plan and size it

Check compatibility with Supermicro

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Supermicro has tested with the Supermicro A+ GPU Server AS -8125GS-TNMR2.

Equivalent models from other brands

FAQ

What inter-GPU communication is used on the AS -8125GS-TNMR2?

All eight NVIDIA H100 SXM5 GPUs communicate over NVIDIA NVLink 4 with NVSwitches, delivering up to 900 GB/s per GPU.

How many InfiniBand cards are supported?

The system features eight dedicated PCIe 5.0 x16 slots supporting one 400Gb/s NDR InfiniBand adapter per GPU for GPUDirect RDMA clusters.

Buying or selling AS -8125GS-TNMR2?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources