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Supermicro GPU A+ Server 4125GS-TNRT2 - System Overview

Supermicro GPU A+ Server 4125GS-TNRT2 front

For GPU-intensive workloads, the server supports up to 10x double-width, full-length GPUs with a PCIe 5.0 x16 CPU-to-GPU interconnect, along with optional NVIDIA NVLink Bridge and AMD Infinity Fabric Link. Compatible GPUs include:

NVIDIA PCIe:
  • H100, H100 NVL, A30, A40, L4, L40S, RTX 6000 Ada, RTX A4000, A100, RTX A6000, L40, RTX 4000 Ada, RTX 4000 SFF Ada, RTX 4500 Ada, RTX 5000 Ada, RTX PRO 6000 Blackwell Max-Q, RTX A5000
AMD PCIe:
  • Instinct MI210
Supermicro GPU Server 4125GS-TNRT2 rear

The front panel offers 24x 2.5-inch hot-swap NVMe, SATA, and SAS drive bays, with 8x NVMe and 2x SATA drives supported by default. For boot drives, the motherboard provides 1x M.2 PCIe 3.0 x4 NVMe slot. Expansion is handled via 11x PCIe Gen5 x16 FHFL slots accessible from the rear panel. Another option, Option A, provides 13x PCIe 5.0 x16 FHFL slots. 4x 2000W Titanium-level power supplies provide 2+2 redundancy. The Supermicro 4125GS-TNRT2 can be managed locally or remotely using Supermicro’s software tools. Minimum configuration requirements include 2x CPUs, 2x GPUs, 2x DIMMs, and 1x storage device.

Supermicro GPU A+ Server 4125GS-TNRT2 - Specifications

Processor - 2 Sockets

  • 2x AMD EPYC 9004 Series CPUs
  • 2x AMD EPYC 9005 Series CPUs
  • Up to 160 cores/320 threads
  • Supports up to 400W TDP CPUs

Motherboard

  • Super H13DSG-O-CPU

Memory

Memory Slots:

  • 24x DIMM slots
  • Max Memory (1DPC): Up to 6TB 4800MT/s ECC DDR5 RDIMM (AMD EPYC 9004 Series Processor)
  • Max Memory (1DPC): Up to 6TB 6000MT/s ECC DDR5 RDIMM (AMD EPYC 9005 Series Processor)

GPUs

Max GPU Count: Up to 10x double-width GPUs

  • 4x onboard GPUs

Supported GPU:

  • NVIDIA PCIe: H100, H100 NVL, A30, A40, L4, L40S, RTX 6000 Ada, RTX A4000, A100, RTX A6000, L40, RTX 4000 Ada, RTX 4000 SFF Ada, RTX 4500 Ada, RTX 5000 Ada, RTX PRO 6000 Blackwell Max-Q, RTX A5000
  • AMD PCIe: Instinct MI210

CPU-GPU Interconnect:

  • PCIe 5.0 x16 Switch Dual-Root

GPU-GPU Interconnect:

  • NVIDIA NVLink Bridge (optional), AMD Infinity Fabric Link (optional)

Drive Bays

Default: Total 10 bays

  • 8x front hot-swap 2.5" NVMe drive bays
  • 2x front hot-swap 2.5" SATA drive bays

M.2:

  • 1x M.2 PCIe 3.0 x4 NVMe slot (M-key)

Expansion Slots

Default:

  • 11x PCIe 5.0 x16 FHFL slots

Option A:

  • 13x PCIe 5.0 x16 FHFL slots

On-Board Devices

Chipset:

  • AMD SP5

Network Connectivity:

  • 2x RJ45 10GbE

SATA:

  • SATA (6Gbps)

System Cooling

  • Up to 8x heavy duty fans with optimal fan speed control

Power Supply

  • 4x 2000W Redundant (3+1) Titanium Level (96%) power supplies

Chassis

Enclosure: 4U Rackmount
Height: 7" (178 mm)
Width: 17.2" (437 mm)
Depth: 29" (737 mm)
Gross Weight: 100 lbs (45.3 kg)
Net Weight: 65.5 lbs (29.7 kg)

Supermicro GPU A+ Server 4125GS-TNRT2 - Documentation

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