HP proliant DL380 GEN9 User Manual page 25

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.
The high-performance fans are used for 24-SFF and 12-LFF drive configurations and might be necessary
for the following installations:
•
Optional GPU riser installations
•
ASHRAE compliant configurations
For more information, see the Hewlett Packard Enterprise website
(http://www.hpe.com/servers/ASHRAE).
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).
Component identification 25