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Supermicro AS-4125GS-TNRT barebone server chassis, dual SP5 sockets, 24 DDR5 slots, four 2.5 NVMe bays

Supermicro

Supermicro AS -4125GS-TNRT barebone server, dual SP5 EPYC 9004, 24 DDR5, 4×2.5 NVMe, 400W

SKU CH-8D2T-4K7QJ MPN AS -4125GS-TNRT

Dual-socket SP5 barebone for EPYC 9004 CPUs with 24 DDR5 slots and four 2.5-inch NVMe bays

  • ProcessorAMD EPYC 9004 Series
  • Processor socketDual Socket SP5
  • Target workloadAI/ML/HPC
  • Dual SP5 sockets support EPYC 9004 series processors up to 400W TDP
  • 24 DDR5 DIMM slots deliver up to 6TB memory capacity for AI workloads
  • Four 2.5-inch hot-swap NVMe bays provide high-speed storage for HPC applications
  • Flexible GPU support accommodates eight double-width full-length GPUs for deep learning
  • AIOM and OCP 3.0 compatibility enables modular networking expansion

Dual-socket SP5 platform for AI workloads

The Supermicro AS -4125GS-TNRT barebone server is built for dual AMD EPYC 9004 series processors and targets AI, ML and HPC clusters. It provides a dense compute foundation for training and inference jobs that scale across two sockets.

Sustained 400 W TDP cooling and memory bandwidth

Each socket supports up to 400 W TDP, allowing the system to maintain peak frequencies during extended training runs. Twenty-four DDR5 slots deliver the memory bandwidth required for large-model workloads without throttling under continuous load.

GPU-dense chassis with hot-swap NVMe bays

The chassis accommodates up to eight double-width full-length GPUs, mixing active and passive cooling designs, while four 2.5-inch hot-swap NVMe bays and an M.2 slot provide fast local storage. Installers must verify GPU power-cable routing and AIOM card clearance before final assembly.

How it compares

Measured against everything we stock in Barebone Servers & DIY Kits, at today’s prices. Recalculated every night.

Price $5,567.99
Pricier than about 78% of the 532 comparable items (median $2,503.49).

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Specifications

Product
Target workloadAI/ML/HPC
Processor
ProcessorAMD EPYC 9004 Series
Processor socketDual Socket SP5
Size & build
Shipping weight45.36 kg
Package size1041 × 686 × 675 mm

Questions about this item

How much heat do the dual 400W EPYC 9004 processors generate when the AS-4125GS-TNRT runs continuously?

Each CPU socket supports up to 400W TDP, so the chassis must handle the combined thermal load of two processors at that level under sustained AI/ML/HPC workloads.

Which components are not included with the AS-4125GS-TNRT barebone and must be sourced separately?

The unit ships without CPUs, DDR5 memory modules, NVMe drives, GPU cards or an AIOM/OCP 3.0 module; all of those must be added before the server can operate.

Will my existing PCIe 4.0 NVMe drives work in the four 2.5-inch hot-swap bays of the AS-4125GS-TNRT?

The bays accept 2.5-inch NVMe drives and the platform uses EPYC 9004 series processors with native PCIe 5.0 lanes, so PCIe 4.0 drives will function at their rated speed.

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