Limited operating inlet ambient temperature requirementsLimited operating inlet ambient temperature requirements
The maximum operating inlet ambient temperature value for most components installed in the server is 35°C (95°F). However,
installing some components in specific configurations are subject to temperature limitations. To ensure safe and reliable system
operation, identify the limited operating inlet ambient temperature required for these configurations.
In the following tables, the processor thermal design power (TDP) is set at a default value. Use the UEFI System Utilities to adjust the
TDP setting within preset limits—configurable TDP (cTDP).
From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Processor Options. Enter the
number in milliwatt (mW) for the Processor RAPL wattage value field.
SubtopicsSubtopics
Limited operating inlet ambient temperature requirements for DDR5 4800 256 GB DIMMLimited operating inlet ambient temperature requirements for DDR5 4800 256 GB DIMM
Limited operating inlet ambient temperature requirements for HPE InfiniBand HDR100 / Ethernet 100GB 2-port QSFP56 PCIe4 x16Limited operating inlet ambient temperature requirements for HPE InfiniBand HDR100 / Ethernet 100GB 2-port QSFP56 PCIe4 x16
AdapterAdapter
Limited operating inlet ambient temperature requirements for HPE NS204i Boot DeviceLimited operating inlet ambient temperature requirements for HPE NS204i Boot Device
Limited operating inlet ambient temperature requirements for DDR5 4800 256 GB DIMMLimited operating inlet ambient temperature requirements for DDR5 4800 256 GB DIMM
The following temperature values are valid for all drive configurations.
Fan presenceFan presence Fan redundancyFan redundancy Maximum inlet ambient temperatureMaximum inlet ambient temperature
Fans 2–4 Not supported 25°C (77°F)
Fans 1–4 Not supported 25°C (77°F)
Fans 1–8 Supported 30°C (86°F)
Limited operating inlet ambient temperature requirements for Limited operating inlet ambient temperature requirements for HPEHPE InfiniBand HDR100 / InfiniBand HDR100 /
Ethernet 100GB 2-port QSFP56 PCIe4 x16 AdapterEthernet 100GB 2-port QSFP56 PCIe4 x16 Adapter
AOC stands for active optical cable, while DAC stands for direct attach copper cable.
IMPORTANT:IMPORTANT:
High-bandwidth HDR InfiniBand and Ethernet adapters might cause the fans to operate at high speeds to maintain
optimum system cooling. This high-speed fan operation can generate excessive fan noise and lead the system to be on
standby mode.
Drive configurationDrive configuration Cable typeCable type Processor TDPProcessor TDP Maximum inlet ambientMaximum inlet ambient
temperaturetemperature
4 LFF / 8 SFF DAC All 30°C (86°F)
AOC ≤ 270 W 30°C (86°F)
> 270 W 25°C (77°F)
8 LFF / 16 SFF DAC All 30°C (86°F)
AOC ≤ 270 W 30°C (86°F)
> 270 W 25°C (77°F)
8 NVMe x4 DAC All 30°C (86°F)
AOC All 25°C (77°F)
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