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Thermal rules

This topic provides thermal rules for the server.

Note

  • Install the DIMM dummy for the empty DIMM slot.

  • When the server is installed with rear M.2 NVMe/SATA drive or front M.2 NVMe drive assembly, users must install an M.2 drive heat sink.

  • If one processor is installed, at least three fan-packs should be installed.

  • Users can replace the standard fans with high-performance or ultra fans for the server models not installing with Compute Complex Neptune Core Module.

  • Users can replace the standard heat sinks with high-performance heat sinks for all configurations.

Server models with front drive bays only (standard configuration)​

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

Configuration

  • Backplane-less configuration

  • 4 x 2.5'' NVMe/SAS/SATA

  • 8 x 2.5'' SAS/SATA

  • 10 x 2.5'' SAS/SATA

  • 6 x 2.5'' SAS/SATA + 4 x 2.5'' AnyBay

Max. Ambient Temp.

(at sea level)

45°C35°C
CPU TDP (watts)TDP ≤ 165165 < TDP ≤ 210210 < TDP ≤ 350
Heat sinkStandardStandardPerformance
Air baffle√√x
Fan typeStandardStandardPerformance
DIMM capacity≤ 64 GB≤ 128 GB≤ 256 GB
Max. DIMM Qty.323232
Configuration

  • 8 x 2.5'' NVMe/AnyBay/U.3

  • 10 x 2.5'' NVMe/AnyBay/U.3

Max. Ambient Temp.

(at sea level)

35°C30°C
CPU TDP (watts)TDP ≤ 165165 < TDP ≤ 210210 < TDP ≤ 350TDP ≤ 165
Heat sinkStandardStandardPerformanceStandard
Air baffle√√x√
DIMM capacity≤ 64 GB≤ 256 GB≤ 256 GB≤ 128 GB
Fan typeStandardPerformancePerformanceStandard
Max. DIMM Qty.32323232
Table 1. Special notes
When the server is installed with below adapters, cables, or processors with the AOC transceiver:Follow below rules:
Transceivers (AOC ≥ 100 GbE):

  • 100GBase-SR4 QSFP28 Transceiver

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

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

Transceivers (AOC ≥ 100 GbE):

  • Mellanox HDR IB Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • Mellanox HDR IB to 2x HDR100 Splitter Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • ThinkSystem NDR OSFP400 IB Multi Mode Solo-Transceiver

  • ThinkSystem NDR/NDR200 QSFP112 IB Multi Mode Solo-Transceiver

  • If TruDDR5 8800MHz 64 GB (2Rx4) MRDIMM or TruDDR5 6400MHz 256 GB (4Rx4) 3DS RDIMM is installed:

    • The ambient temperature must be limited to 25°C or lower and high-performance fan-packs must be installed.

    • The ambient temperature must be limited to 30°C or lower and ultra fan-packs must be installed.

  • If TruDDR5 8800MHz 64 GB (2Rx4) MRDIMM or TruDDR5 6400MHz 256 GB (4Rx4) 3DS RDIMM is not installed:

    • The ambient temperature must be limited to 30°C or lower and high-performance fan-packs must be installed.

Transceivers (AOC ≥ 100 GbE):

  • ThinkSystem NVIDIA ConnectX-8 8240 400GbE / 400Gb/s IB QSFP112 2-port PCIe Gen6 x16 (Generic FW)

  • For 10 x 2.5'' SAS/SATA/NVMe/AnyBay and 6 x 2.5'' SAS/SATA + 4 x 2.5'' AnyBay configuration:

    • The ambient temperature must be limited to 25°C or lower, TDP should be between 300 and 350 watts, and high-performance fan-packs must be installed.

    • The ambient temperature must be limited to 30°C or lower, TDP should be limited to 300 watts or lower, and high-performance fan-packs must be installed.

  • For 8 x 2.5'' NVMe/AnyBay/SAS/SATA and 4 x 2.5'' NVMe/SAS/SATA configuration, the ambient temperature must be limited to 30°C or lower, TDP should be limited to 350 watts or lower, and high-performance fan-packs must be installed.

Note
  • The following adapters do not support AOC ≥ 100 GbE:

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 PCIe Ethernet Adapter

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 OCP Ethernet Adapter

    • ThinkSystem NVIDIA ConnectX-8 8180 800Gbs XDR IB / 2x400GbE OSFP 1-port PCIe Gen6 x16 (Generic FW)

  • When ThinkSystem Cornelis CN5000 OPA QSFP112 HFI Adapter is installed, the following requirements should be met:

    • If the processor (TDP≤ 300 watts) is installed, the ambient temperature must be limited to 35°C or lower, and the high-performance fan-packs must be installed.

    • If the processor (TDP≤ 350 watts) is installed, the ambient temperature must be limited to 30°C or lower, and the high-performance fan-packs must be installed.

Server models with front drive bays only (E3.S configuration)​

Configuration

  • 4 x E3.S 1T / 2 x E3.S 2T

  • 8 x E3.S 1T / 4 x E3.S 2T

  • 12 x E3.S 1T / 6 x E3.S 2T

  • 16 x E3.S 1T / 8 x E3.S 2T

Max. Ambient Temp.

(at sea level)

35°C
CPU TDP (watts)TDP ≤ 165165 < TDP ≤ 350
Heat sinkStandardPerformance
Air baffle√x
DIMM capacity≤ 256 GB≤ 256 GB
Fan typePerformancePerformance
Max. DIMM Qty.3232
Note

  • For the special notes about adapters, cables, or processors with the AOC transceiver, see Table 1.

  • The following adapters do not support AOC ≥ 100 GbE.

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 PCIe Ethernet Adapter

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 OCP Ethernet Adapter

    • ThinkSystem NVIDIA ConnectX-8 8180 800Gbs XDR IB / 2x400GbE OSFP 1-port PCIe Gen6 x16 (Generic FW)

  • When ThinkSystem Cornelis CN5000 OPA QSFP112 HFI Adapter is installed, the following requirements should be met:

    • If the processor (TDP≤ 300 watts) is installed, the ambient temperature must be limited to 35°C or lower, and the high-performance fan-packs must be installed.

    • If the processor (TDP≤ 350 watts) is installed, the ambient temperature must be limited to 30°C or lower, and the high-performance fan-packs must be installed.

Server models with front and rear drive bays​

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

Configuration

(Front)

  • 10 x 2.5'' NVMe/SAS/SATA/AnyBay/U.3

Configuration

(Rear)

  • 2 x 2.5'' NVMe/U.3

  • 2 x 2.5'' SAS/SATA SSD

  • 2 x 2.5'' SAS/SATA HDD

  • 2 x 2.5'' NVMe/U.3

  • 2 x 2.5'' SAS/SATA SSD

Max. Ambient Temp.

(at sea level)

35°C30°C
CPU TDP (watts)TDP ≤ 210210 ≤ TDP ≤ 225225 < TDP ≤ 250250 < TDP ≤ 300
Heat sinkStandardPerformancePerformancePerformance
Air baffle√xxx
Fan typePerformancePerformancePerformancePerformance
DIMM capacity≤ 256 GB≤ 256 GB≤ 256 GB≤ 256 GB
Max. DIMM Qty.32323232

Configuration

(Front)

  • 10 x 2.5'' NVMe/U.3

Configuration

(Rear)

  • 2 x 2.5'' NVMe/U.3

Max. Ambient Temp.

(at sea level)

30°C25°C
CPU TDP (watts)300 < TDP ≤ 350300 < TDP ≤ 350
Heat sinkPerformancePerformance
Air bafflexx
Fan typeUltraPerformance
DIMM capacity≤ 128 GB≤ 128 GB
Max. DIMM Qty.3232
Note

  • For the special notes about adapters, cables, or processors with the AOC transceiver, see Table 1.

  • The following adapters do not support AOC ≥ 100 GbE.

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 PCIe Ethernet Adapter

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 OCP Ethernet Adapter

    • ThinkSystem NVIDIA ConnectX-8 8180 800Gbs XDR IB / 2x400GbE OSFP 1-port PCIe Gen6 x16 (Generic FW)

  • When ThinkSystem Cornelis CN5000 OPA QSFP112 HFI Adapter is installed, the following requirements should be met:

    • If the processor (TDP≤ 300 watts) is installed, the ambient temperature must be limited to 35°C or lower, and the high-performance fan-packs must be installed.

    • If the processor (TDP≤ 350 watts) is installed, the ambient temperature must be limited to 30°C or lower, and the high-performance fan-packs must be installed.

Server models with GPUs​

This section provides thermal information for server models installed with GPUs.

Configuration

  • 4 x E3.S 1T / 2 x E3.S 2T

  • 8 x E3.S 1T / 4 x E3.S 2T

  • 12 x E3.S 1T / 6 x E3.S 2T

  • 16 x E3.S 1T / 8 x E3.S 2T

  • Backplane-less configuration

  • 4 x 2.5" SAS/SATA/NVMe

  • 8 x 2.5" NVMe/SAS/SATA/AnyBay/U.3

  • 10 x 2.5" NVMe/SAS/SATA/AnyBay/U.3

  • 6 x 2.5" SAS/SATA + 4 x 2.5 AnyBay

  • Backplane-less configuration

  • 4 x 2.5" SAS/SATA/NVMe

  • 8 x 2.5" NVMe/SAS/SATA/AnyBay/U.3

  • 10 x 2.5" NVMe/SAS/SATA/AnyBay/U.3

  • 6 x 2.5" SAS/SATA + 4 x 2.5 AnyBay

Max. Ambient Temp.

(at sea level)

30°C
CPU TDP (watts)TDP ≤ 165165 < TDP ≤ 300300 < TDP ≤ 350165 ≤ TDP ≤ 210
Heat sinkStandardPerformancePerformanceStandard
Air baffle√xx√
Fan typePerformancePerformancePerformancePerformance
DIMM capacity≤ 256 GB≤ 256 GB≤ 256 GB≤ 256 GB
Max. GPU Qty.3323
Max. DIMM Qty.32323232
Note

  • For the special notes about adapters, cables, or processors with the AOC transceiver, see Table 1.

  • The following adapters do not support AOC ≥ 100 GbE.

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 PCIe Ethernet Adapter

    • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 OCP Ethernet Adapter

    • ThinkSystem NVIDIA ConnectX-8 8180 800Gbs XDR IB / 2x400GbE OSFP 1-port PCIe Gen6 x16 (Generic FW)

  • When ThinkSystem Cornelis CN5000 OPA QSFP112 HFI Adapter is installed, the following requirements should be met:

    • If the processor (TDP≤ 300 watts) is installed, the ambient temperature must be limited to 35°C or lower, and the high-performance fan-packs must be installed.

    • If the processor (TDP≤ 350 watts) is installed, the ambient temperature must be limited to 30°C or lower, and the high-performance fan-packs must be installed.

Server models with NeptAir module​

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

Configuration

Note1,2

  • Backplane-less configuration

  • 4 x 2.5'' NVMe/SAS/SATA

  • 8 x 2.5'' NVMe/SAS/SATA/AnyBay/U.3

  • 10 x 2.5'' NVMe/SAS/SATA/AnyBay/U.3

  • 6 x 2.5" SAS/SATA + 4 x 2.5 AnyBay

  • 4 x E3.S 1T / 2 x E3.S 2T

  • 8 x E3.S 1T / 4 x E3.S 2T

  • 12 x E3.S 1T / 6 x E3.S 2T

  • 16 x E3.S 1T / 8 x E3.S 2T

Max. Ambient Temp.

(at sea level)

35°C
CPU TDP (watts)TDP ≤ 165165 ＜ TDP ≤ 350300 ＜ TDP ≤ 350
Heat sinkProcessor Neptune Air Module (NeptAir)
Air bafflexxx
Fan typePerformancePerformanceUltra
DIMM capacity≤ 256 GB≤ 128 GB≤ 256 GB
Max. DIMM Qty.323232
Table 2. Special notes
When the server is installed with below adapters, cables, or processors with the AOC transceiver:Follow below rules:
Transceivers (AOC ≥ 100 GbE):

  • 100GBase-SR4 QSFP28 Transceiver

  • The ambient temperature must be limited to 30°C or lower and high-performance fan-packs must be installed.

  • The ambient temperature must be limited to 35°C or lower and ultra fan-packs must be installed.

Transceivers (AOC ≥ 100 GbE):

  • Mellanox HDR IB Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • Mellanox HDR IB to 2x HDR100 Splitter Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • ThinkSystem NDR OSFP400 IB Multi Mode Solo-Transceiver

  • ThinkSystem NDR/NDR200 QSFP112 IB Multi Mode Solo-Transceiver

  • If TruDDR5 8800MHz 64 GB (2Rx4) MRDIMM or TruDDR5 6400MHz 256 GB (4Rx4) 3DS RDIMM is installed:

    • The ambient temperature must be limited to 25°C or lower and high-performance fan-packs must be installed.

    • The ambient temperature must be limited to 30°C or lower and ultra fan-packs must be installed.

  • If TruDDR5 8800MHz 64 GB (2Rx4) MRDIMM or TruDDR5 6400MHz 256 GB (4Rx4) 3DS RDIMM is not installed:

    • The ambient temperature must be limited to 30°C or lower and high-performance fan-packs must be installed.

Transceivers (AOC ≥ 100 GbE):

  • ThinkSystem NVIDIA ConnectX-8 8240 400GbE / 400Gb/s IB QSFP112 2-port PCIe Gen6 x16 (Generic FW)

  • For 10 x 2.5'' SAS/SATA/NVMe/AnyBay, 6 x 2.5'' SAS/SATA + 4 x 2.5'' AnyBay, and 16 x E3.S 1T / 8 x E3.S 2T configuration:

    • The ambient temperature must be limited to 25°C or lower, TDP should be limited to 350 watts or lower, and high-performance fan-packs must be installed.

    • The ambient temperature must be limited to 30°C or lower, TDP should be limited to 350 watts or lower, and ultra fan-packs must be installed.

    • The ambient temperature must be limited to 30°C or lower, TDP should be limited to 300 watts or lower, and high-performance fan-packs must be installed.

  • For 8 x 2.5'' NVMe/AnyBay/SAS/SATA, 4 x 2.5'' NVMe/SAS/SATA, 4 x E3.S 1T / 2 x E3.S 2T, 8 x E3.S 1T / 4 x E3.S 2T, 12 x E3.S 1T / 6 x E3.S 2T, configuration, the ambient temperature must be limited to 30°C or lower, TDP should be limited to 350 watts or lower, and high-performance fan-packs must be installed.

Processor

  • 6732P

  • The standard heat sinks or high-performance heat sinks cannot be installed.

Note

  • For the special notes about adapters, cables, or processors with the AOC transceiver, see Table 1.

  • When ThinkSystem Cornelis CN5000 OPA QSFP112 HFI Adapter is installed, the following requirements should be met:

    • If the processor (TDP≤ 300 watts) is installed, the ambient temperature must be limited to 35°C or lower, and the high-performance fan-packs must be installed.

    • If the processor (TDP≤ 350 watts) is installed, the ambient temperature must be limited to 30°C or lower, and the high-performance fan-packs must be installed.

Server models with NeptCore module​

This section provides thermal information for server models installed with the Processor Neptune Core Module.

Configuration

  • Backplane-less configuration

  • 4 x 2.5'' NVMe/SAS/SATA

  • 8 x 2.5'' NVMe/SAS/SATA/AnyBay/U.3

  • 10 x 2.5'' NVMe/SAS/SATA/AnyBay/U.3

  • 6 x 2.5" SAS/SATA + 4 x 2.5 AnyBay

  • 4 x E3.S 1T / 2 x E3.S 2T

  • 8 x E3.S 1T / 4 x E3.S 2T

  • 12 x E3.S 1T / 6 x E3.S 2T

  • 16 x E3.S 1T / 8 x E3.S 2T

CPU TDP (watts)TDP ≤ 350

Max. Ambient Temp.

(at sea level)

35°C

Max. Liquid1 inlet Temp.

(at sea level)

45°C
Heat sinkProcessor Neptune Core Module
Air bafflex
Fan typeStandard 2
DIMM capacity≤ 256 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 rear M.2 NVMe/SATA drive or front M.2 NVMe drive assembly, users must install an M.2 drive heat sink.

When the server is installed with below adapters or memory with the AOC transceiver:Follow below rules:
Transceivers (AOC ≥ 100 GbE):

  • 100GBase-SR4 QSFP28 Transceiver

  • The ambient temperature must be limited to 35°C or lower and standard fan-packs must be installed.

Transceivers (AOC ≥ 100 GbE):

  • Mellanox HDR IB Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • Mellanox HDR IB to 2x HDR100 Splitter Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • ThinkSystem NDR OSFP400 IB Multi Mode Solo-Transceiver

  • ThinkSystem NDR/NDR200 QSFP112 IB Multi Mode Solo-Transceiver

  • If TruDDR5 8800MHz 64 GB (2Rx4) MRDIMM or TruDDR5 6400MHz 256 GB (4Rx4) 3DS RDIMM is installed:

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

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

  • If TruDDR5 8800MHz 64 GB (2Rx4) MRDIMM or TruDDR5 6400MHz 256 GB (4Rx4) 3DS RDIMM is not installed:

    • The ambient temperature must be limited to 35°C or lower and standard fan-packs must be installed.

Transceivers (AOC ≥ 100 GbE):

  • ThinkSystem NVIDIA ConnectX-8 8240 400GbE / 400Gb/s IB QSFP112 2-port PCIe Gen6 x16 (Generic FW)

  • The ambient temperature must be limited to 35°C or lower and standard fan-packs must be installed.

Processor

  • 6732P

  • The standard heat sinks or high-performance heat sinks cannot be installed.

Note
The following adapters do not support AOC ≥ 100 GbE.

  • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 PCIe Ethernet Adapter

  • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 OCP Ethernet Adapter

  • ThinkSystem NVIDIA ConnectX-8 8180 800Gbs XDR IB / 2x400GbE OSFP 1-port PCIe Gen6 x16 (Generic FW)

Server models with Compute Complex Neptune Core Module​

This section provides thermal information for server models installed with the Compute Complex Neptune Core Module.

Configuration

  • Backplane-less configuration

  • 4 x 2.5'' NVMe/SAS/SATA

  • 8 x 2.5'' NVMe/SAS/SATA/U.3

  • 10 x 2.5'' NVMe/SAS/SATA/U.3

  • 4 x E3.S 1T

  • 8 x E3.S 1T

  • 12 x E3.S 1T

CPU TDP (watts)TDP ≤ 350

Max. Ambient Temp.

(at sea level)

35°C

Max. Liquid1 inlet Temp.

(at sea level)

45°C
Heat sinkCompute Complex Neptune Core Module
Air bafflex
Fan typeStandard 2
DIMM capacity≤ 256 GB
Max. DIMM Qty.16
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 rear M.2 NVMe/SATA drive or front M.2 NVMe drive assembly, users must install an M.2 drive heat sink.

When the server is installed with below adapters with the AOC transceiver:Follow below rules:
Transceivers (AOC ≥ 100 GbE):

  • 100GBase-SR4 QSFP28 Transceiver

  • The ambient temperature must be limited to 35°C or lower and standard fan-packs must be installed.

Transceivers (AOC ≥ 100 GbE):

  • Mellanox HDR IB Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • Mellanox HDR IB to 2x HDR100 Splitter Optical QSFP56 Cable (3m/5m/10m/15m/20m)

  • ThinkSystem NDR OSFP400 IB Multi Mode Solo-Transceiver

  • ThinkSystem NDR/NDR200 QSFP112 IB Multi Mode Solo-Transceiver

  • The ambient temperature must be limited to 30°C or lower.

Transceivers (AOC ≥ 100 GbE):

  • ThinkSystem NVIDIA ConnectX-8 8240 400GbE / 400Gb/s IB QSFP112 2-port PCIe Gen6 x16 (Generic FW)

  • The ambient temperature must be limited to 35°C or lower and standard fan-packs must be installed.

Processor

  • 6732P

  • The standard heat sinks or high-performance heat sinks cannot be installed.

Note
The following adapters do not support AOC ≥ 100 GbE.

  • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 PCIe Ethernet Adapter

  • ThinkSystem Broadcom 57608 2x200/1x400GbE QSFP112 OCP Ethernet Adapter

  • ThinkSystem NVIDIA ConnectX-8 8180 800Gbs XDR IB / 2x400GbE OSFP 1-port PCIe Gen6 x16 (Generic FW)