Determining and setting the thermal mode for an 8335-GTG, 8335-GTH, or 8335-GTX system

Learn how to determine and set the thermal mode that is required for your system.

You might be required to set the thermal mode of the system to a setting other than the default setting, depending on your system, adapter, and cable type. Failure to set the correct thermal mode might result in system errors. To determine the thermal mode that is required for your system, see the following tables depending on the system model, adapter, and cable type that you are using. For instructions about setting the thermal mode, see Setting the thermal mode.

Notes:
  • If your system has more than one of the adapters and cable configurations that are listed in the table, select the thermal mode for the adapter and cable configuration that has the highest fan speed, where the order of fan speed from slowest to fastest is DEFAULT, CUSTOM, HEAVY_IO, and MAX_BASE_FAN_FLOOR.
  • After a factory reset of the system, the thermal mode setting is lost and must be reapplied.
Table 1. Thermal mode setting for the 8335-GTG or 8335-GTH system
Adapter feature code Adapter description Cable type Thermal mode
EC62 PCIe4 x16 1-Port EDR 100 Gb InfiniBand ConnectX-5 CAPI capable adapter Copper DEFAULT
Optical CUSTOM
EC64 PCIe4 x16 2-Port EDR 100 Gb InfiniBand ConnectX-5 CAPI capable adapter Copper DEFAULT
Optical CUSTOM
All other adapters and cable types DEFAULT
Table 2. Thermal mode setting for the 8335-GTX system
Adapter feature code Adapter description Cable type Thermal mode
EC62 PCIe4 x16 1-Port EDR 100 Gb InfiniBand ConnectX-5 CAPI capable adapter Copper or optical DEFAULT
EC64 PCIe4 x16 2-Port EDR 100 Gb InfiniBand ConnectX-5 CAPI capable adapter Copper or optical DEFAULT
All other adapters and cable types DEFAULT

Setting the thermal mode

After you determine the thermal mode based on the system model, adapter, and cable type, choose one of the following options to set the thermal mode.
Note: The OpenBMC tool must be version 1.14 or later to set the thermal mode. For instructions about downloading and installing the OpenBMC tool, see Downloading and installing the OpenBMC tool.
To set the thermal mode to CUSTOM, type the following command and press Enter:
openbmctool -U <username> -P <password> -H <BMC IP address or BMC host name> 
thermal modes set -m CUSTOM -z 0
To set the thermal mode to DEFAULT, type the following command and press Enter:
openbmctool -U <username> -P <password> -H <BMC IP address or BMC host name> 
thermal modes set -m DEFAULT -z 0
To set the thermal mode to HEAVY_IO, type the following command and press Enter:
openbmctool -U <username> -P <password> -H <BMC IP address or BMC host name>
 thermal modes set -m HEAVY_IO -z 0
To set the thermal mode to MAX_BASE_FAN_FLOOR, type the following command and press Enter:
openbmctool -U <username> -P <password> -H <BMC IP address or BMC host name>
 thermal modes set -m MAX_BASE_FAN_FLOOR -z 0