Skip to main content

Thermal rules

This topic provides thermal rules for the server.

Server models with front drive bays only​

This section provides thermal information for server models with front drive bays only.

Configuration

  • Backplane-less configuration

  • 4 x 2.5'' NVMe

  • 4 x 2.5'' NVMe with two low-profile PCIe adapters

Max. Ambient Temp. (at sea level)35°C30°C
CPU TDP (watts)185 ≤ TDP ≤ 205205 < TDP ≤ 250250 < TDP ≤ 300300 < TDP ≤ 350
Heat sinkStandardPerformancePerformancePerformance
Air baffle√xxx
Fan typeStandardPerformancePerformancePerformance
DIMM capacity≤ 64 GB≤ 64 GB≤ 64 GB≤ 64 GB
Max. DIMM Qty.32323232
Configuration

  • 8 x 2.5'' NVMe

  • 10 x 2.5'' NVMe

Max. Ambient Temp. (at sea level)35°C30°C
CPU TDP (watts)185 ≤ TDP ≤ 205205 < TDP ≤ 250250 < TDP ≤ 300300 < TDP ≤ 350
Heat sinkStandardPerformancePerformancePerformance
Air baffle√xxx
DIMM capacity≤ 64 GB≤ 64 GB≤ 64 GB≤ 64 GB
Fan typePerformancePerformancePerformancePerformance
Max. DIMM Qty.32323232
Note
When the server is installed with below adapters with the AOC transceiver:Follow below rules:

  • ThinkSystem Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter

  • ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter

  • Must use high-performance fan-packs.

  • The ambient temperature must be limited to 27°C or lower when CPU TDP ≥ 250W.

  • The ambient temperature must be limited to 30°C or lower when CPU TDP < 250W.

When the server is installed with rear M.2 drive assembly, must install an M.2 drive heat sink.

Server models with front and rear drive bays​

This section provides thermal information for server models with front and rear drive bays.

Configuration

  • 10 x 2.5'' NVMe

  • Rear 2 x 2.5'' NVMe/U.2/U.3

Max. Ambient Temp. (at sea level)35°C30°C25°C
CPU TDP (watts)185 ≤ TDP ≤ 205225 < TDP ≤ 250250 < TDP ≤ 300300 < TDP ≤ 350
Heat sinkPerformancePerformancePerformancePerformance
Air bafflexxxx
Fan typePerformancePerformancePerformancePerformance
DIMM capacity≤ 64 GB≤ 64 GB≤ 64 GB≤ 64 GB
Max. DIMM Qty.32323232
Note
When the server is installed with below adapters with the AOC transceiver:Follow below rules:

  • ThinkSystem Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter

  • ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter

  • Must use high-performance fan-packs.

  • The ambient temperature must be limited to 27°C or lower when CPU TDP ≥ 250W.

  • The ambient temperature must be limited to 30°C or lower when CPU TDP < 250W.

When the server is installed with rear M.2 drive assembly, must install an M.2 drive heat sink.

Server models with NeptAir module​

This section provides thermal information for server models installed with the Processor NeptuneTM Air Module (NeptAir).

Configuration1,2

  • Backplane-less configuration

  • 4 x 2.5'' NVMe

  • 8 x 2.5'' NVMe

  • 10 x 2.5'' NVMe

Max. Ambient Temp. (at sea level)35°C30°C
CPU TDP (watts)185 ≤ TDP ≤ 205205 < TDP ≤ 250250 < TDP ≤ 300300 < TDP ≤ 350
Heat sinkProcessor NeptuneTM Air Module (NeptAir)
Air bafflex
Fan typePerformance
DIMM capacity≤ 64 GB
Max. DIMM Qty.32
Note

  1. The server models installed with NeptAir module do not support rear drives or GPUs.

  2. The server models installed with NeptAir module do not support 4 x 2.5'' front drives with front adapter assembly.

When the server is installed with below adapters with the AOC transceiver:Follow below rules:

  • ThinkSystem Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter

  • ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter

  • Must use high-performance fan-packs.

  • The ambient temperature must be limited to 27°C or lower when CPU TDP ≥ 250W.

  • The ambient temperature must be limited to 30°C or lower when CPU TDP < 250W.

When the server is installed with rear M.2 drive assembly, must install an M.2 drive heat sink.

Server models with NeptCore module​

This section provides thermal information for server models installed with the Processor NeptuneTM Core Module (NeptCore).

Configuration

  • Backplane-less configuration

  • 4 x 2.5'' NVMe

  • 8 x 2.5'' NVMe

  • 10 x 2.5'' NVMe

CPU TDP (watts)TDP ≤ 350
Max. Ambient Temp. (at sea level)35°C
Max. Liquid1 inlet Temp. (at sea level)45°C
Heat sinkProcessor NeptuneTM Core Module (NeptCore)
Air bafflex
Fan typeStandard2,3
DIMM capacity≤ 64 GB
Max. DIMM Qty.32
Note

  1. The liquid flow rate for de-ionized water should be no less than 0.5 liters per minute (lpm).

  2. When the server is installed with any ≥ 100 GbE AOC transceiver:

    • With standard fan-packs, the ambient temperature must be limited to 30°C or lower.

    • With high-performance fan-packs, the ambient temperature must be limited to 35°C or lower.

  3. When the server is installed with rear M.2 drive assembly, must install an M.2 drive heat sink.

When the server is installed with below adapters with the AOC transceiver:Follow below rules:

  • ThinkSystem Broadcom 57508 100GbE QSFP56 2-Port OCP Ethernet Adapter

  • ThinkSystem Nvidia ConnectX-7 NDR200/HDR QSFP112 2-port PCIe Gen5 x16 InfiniBand Adapter

  • The ambient temperature must be limited to 30°C or lower when installed with standard fan-packs.

  • The ambient temperature must be limited to 35°C or lower when installed with high-performance fan-packs.