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Supermicro GPU A+ Server 4125GS-TNMR2-LCC - System Overview

 

Supermicro GPU A+ Server 4125GS-TNMR2-LCC front

Designed for advanced GPU workloads, the server supports 8x onboard AMD Instinct MI300X GPUs with an OAM form factor., connected via PCIe 5.0 x16 CPU-to-GPU interconnects and AMD Infinity Fabric Link for high-bandwidth, low-latency data transfer. Storage options include 8x front hot-swap 2.5" NVMe drive bays and 1x M.2 NVMe slot on the motherboard. Up to 6TB of memory can be installed across 24x DIMM slots, with memory speeds reaching 4800MT/s on AMD EPYC 9004 processors and up to 6000MT/s on 9005 series CPUs. All components are powered by 4x 5250W redundant (2+2) Titanium level power supplies. Redundancy is based on the configuration and application load.

Supermicro GPU Server 4125GS-TNMR2-LCC rear

For expansion, the 4125GS-TNMR2-LCC offers 8x PCIe 5.0 x16 low-profile slots and 2x PCIe 5.0 x16 FHHL slots by default. Administrators have the option of installing 8x PCIe 5.0 x16 low-profile slots and 4x PCIe 5.0 x16 FHHL slots. To manage the GPU server, Supermicro SuperDoctor 5 (SD5) provides real-time monitoring for power consumption, fan speeds, and CPU temperatures. Automated alerts via email or Simple Network Management Protocol (SNMP) can help organizations promptly fix issues. Additional tools such as SuperCloud Composer, Supermicro Server Manager, and the SuperServer Automation Assistant are also offered.

This system can only be purchased with a minimal configuration including 2x CPUs with 48 cores minimum, each, but CPUs with 56 cores are recommended. Also required, at least 1.5TB of memory, 8x AMD instinct MI300X OAM GPUs, 1x storage device and one network interface controller (NIC).

Supermicro GPU A+ Server 4125GS-TNMR2-LCC - Specifications

Processor - 2 Sockets

  • 2x AMD EPYC 9004 Series CPUs
  • 2x AMD EPYC 9005 Series CPUs
  • Up to 128 cores/256 threads
  • Supports up to 400W TDP CPUs (Liquid Cooled)

Motherboard

  • Super H13DSG-OM

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:

  • 8x onboard GPUs

Supported GPU:

  • AMD: Instinct MI300 Accelerators

CPU-GPU Interconnect:

  • PCIe 5.0 x16 CPU-to-GPU Interconnect

GPU-GPU Interconnect:

  • AMD Infinity Fabric Link

Drive Bays

Default: Total 8 bays

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

M.2:

  • 1x M.2 NVMe slot (M-key)

Expansion Slots

Default:

  • 8x PCIe 5.0 x16 (in x16) LP slots
  • 2x PCIe 5.0 x16 (in x16) FHHL slots

Option A:

  • 8x PCIe 5.0 x16 (in x16) LP slots
  • 4x PCIe 5.0 x16 (in x16) FHHL slots

On-Board Devices

Chipset:

  • AMD SP5

System Cooling

  • Up to 4x 8cm heavy duty fans with optimal fan speed control

Power Supply

  • 4x 5250W Redundant (2 + 2) Titanium Level (96%) power supplies

Chassis

  • Enclosure: 4U Rackmount
  • Height: 6.85" (174 mm)
  • Width: 17.6" (449 mm)
  • Depth: 33.2" (842 mm)
  • Gross Weight: 138.89 lbs (63 kg)
  • Net Weight: 80.03 lbs (53 kg)

Supermicro GPU A+ Server 4125GS-TNMR2-LCC - Documentation

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