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Silver 4U rackmount server chassis with front drive bays and rear expansion slots

Supermicro

Supermicro AS-4124GS-TNR 4U barebone server, 32 DDR4 slots, 24 SATA bays, 8 GPU support

SKU CH-46B9-24QQM MPN AS-4124GS-TNR

A 4U rackmount barebone supporting dual EPYC processors, 32 DDR4 slots, 24 SATA bays and up to 8 double-width GPUs

  • ProcessorAMD EPYC 7002 Series
  • Graphics processorSupported GPUs 8 Double-Width/Single-Width PCI-E 3.0/4.0 x16
  • Installed RAMNo Memory Installed
  • Form factor4U Rackmount
  • Processor socketSocket SP3
  • Preinstalled processorNo CPU Installed
  • Supports dual AMD EPYC 7003/7002 processors up to 280W TDP each
  • 32 DDR4 3200 slots deliver up to 8TB ECC memory capacity
  • 24 hot-swap SATA 600 bays provide high-density local storage
  • 8 double-width GPU slots with PCI-E 4.0 x16 direct connect for AI workloads
  • 10 PCI-E 4.0 x16 slots available when NVMe devices are not installed

4U GPU server for AI and HPC

This Supermicro barebones system fits dual AMD EPYC 7002 or 7003 series processors in SP3 sockets with up to 280W TDP each. Thirty-two DDR4 3200 ECC slots support up to 8TB of memory. The chassis provides 24 hot-swap SATA 600 bays and eight double-width PCIe 3.0 or 4.0 x16 slots for full-height full-length GPUs such as NVIDIA A100, V100, A40, T4, Quadro RTX or AMD Instinct cards.

Suited for dense GPU workloads.

Organisations running AI training, deep learning, high-performance computing, cloud gaming or molecular dynamics simulations can install up to eight GPUs with direct CPU-to-GPU PCIe connectivity. The platform requires two EPYC processors; single-socket operation is not supported. Buyers needing NVMe storage should note that populating NVMe devices reduces the available PCIe 4.0 x16 slots from ten to nine.

Eight double-width GPU slots decide the build

The defining specification is the eight full-height full-length PCIe 3.0 or 4.0 x16 slots that accept double-width accelerators. This density determines whether the chassis matches the GPU count required for the target workload. No CPU, memory or storage is included, so the buyer must supply compatible EPYC processors, DDR4 3200 ECC modules and SATA drives.

How it compares

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

Price $3,935.99
Pricier than about 70% of the 532 comparable items (median $2,503.49).

New to this? Buying server hardware with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSUPERMICRO
Model nameAS-4124GS-TNR
Processor
ProcessorAMD EPYC 7002 Series
Processor socketSocket SP3
Preinstalled processorNo CPU Installed
Max supported CPUs2
Memory
Installed RAMNo Memory Installed
RAM slots32 × 288Pin
Maximum supported memory8 TB
Supported memoryDDR4 3200
ECC supportYes
Storage
Preinstalled storageNo Storage Installed
SATA ports24 x SATA 600
Hot-swap drive bays24
Graphics
Graphics processorSupported GPUs
8 Double-Width/Single-Width PCI-E 3.0/4.0 x16 Card (Full Height Full Length)
NVIDIA A100, V100, A40, T4, Quadro RTX, AMD Instinct
Supports both active and passive cooled GPUs
CPU-GPU Interconnect: PCI-E Gen 4 x16 Direct Connect CPU-GPU Dual-Root
GPU-GPU Interconnect: NVIDIA NVLink Bridge (Optional), AMD Infinity Fabric (optional)
Connectivity
Top LAN speed10 Gigabit
Ports & slots
PCIe slots9 PCI-E 4.0 x16 (FHFL) slots
or 10 PCI-E 4.0 x16 (FHFL) slots without NVMe devices
Serial ports1 x COM port (header)
VGA ports1 x VGA Connector
Rear USB ports2 x USB 3.0 ports (rear)
Ethernet port2 x RJ45 GbE LAN ports (rear)
1 x RJ45 Dedicated IPMI LAN port
Size & build
Form factor4U Rackmount
Product dimensions7 in × 17.2 in × 29 in
Product weight65.5 lb (29.7 kg)
Shipping weight45.36 kg
Package size1067 × 711 × 356 mm
Environment & compliance
Temperature rangeOperating Temperature: 10 °C to 35 °C (50 °F to 95 °F)
Non-operating Temperature: -40 °C to 60 °C (-40 °F to 140 °F)
Humidity rangeOperating Relative Humidity: 8% to 90% (non-condensing)
Non-operating Relative Humidity: 5% to 95% (non-condensing)

Questions about this item

How can I verify the AS-4124GS-TNR is working correctly after installing the EPYC CPUs and DDR4 memory?

Power on the 4U server and watch the POST screen for dual Socket SP3 recognition, 32 DDR4 3200 slots populated, and 24 SATA 600 bays detected before loading your OS.

What components come with the barebone system and what must I purchase separately for a functional build?

The chassis, motherboard, and cooling for up to 8 double-width GPUs are included; you must add two EPYC 7002 or 7003 CPUs, DDR4 ECC modules up to 8 TB, and 2.5-inch SATA drives for the 24 hot-swap bays.

Which GPU configuration should I choose for the 9 or 10 PCI-E 4.0 x16 slots when planning 8 double-width cards?

Use the 9-slot layout when NVMe devices are present; switch to the 10-slot layout only if no NVMe drives are installed, ensuring all 8 GPUs run at x16.

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