Fan options
Valid fan configurations are listed in the following table.
Configuration | Fan bay 1 | Fan bay 2 | Fan bay 3 | Fan bay 4 | Fan bay 5 | Fan bay 6 |
---|---|---|---|---|---|---|
1 processor | Fan blank | Fan blank | Fan | Fan | Fan | Fan |
1 processor 24-SFF or 12-LFF configuration with high-performance fans | Fan | Fan | Fan | Fan | Fan | Fan |
2 processors | Fan | Fan | Fan | Fan | Fan | Fan |
For a single-processor configuration, excluding 24-SFF and 12-LFF configurations, four fans and two blanks are required in specific fan bays for redundancy. A fan failure or missing fan causes a loss of redundancy. A second fan failure or missing fan causes an orderly shutdown of the server.
For a dual-processor configuration or single-processor 24-SFF or 12-LFF configurations, six fans are required for redundancy. A fan failure or missing fan causes a loss of redundancy. A second fan failure or missing fan causes an orderly shutdown of the server.
High-performance fans might be necessary in 24-SFF and 12-LFF configurations for the following installations:
- Optional GPU riser installations
- ASHRAE compliant configurations
For more information, see the Hewlett Packard Enterprise website.
The server supports variable fan speeds. The fans operate at minimum speed until a temperature change requires a fan speed increase to cool the server. The server shuts down during the following temperature-related scenarios:
- At POST and in the OS, iLO performs an orderly shutdown if a cautionary temperature level is detected. If the server hardware detects a critical temperature level before an orderly shutdown occurs, the server performs an immediate shutdown.
- When the Thermal Shutdown feature is disabled in the BIOS/Platform Configuration (RBSU),
iLO does not perform an orderly shutdown when a cautionary temperature level is detected. Disabling this feature does not disable the server hardware from performing an immediate shutdown when a critical temperature level is detected.
CAUTION: A thermal event can damage server components when the Thermal Shutdown feature is disabled in the BIOS/Platform Configuration (RBSU).