HP (Hewlett-Packard) 662257-001 Server User Manual


 
Component identification 22
CAUTION: To avoid damage to server components, fan blanks must be installed in fan bays 1
and 2 in a single-processor configuration.
The only two 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
2 processors
Fan Fan Fan Fan Fan Fan
For a single-processor configuration, 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.
Installing more than the required number of fans in a single-processor configuration is not a supported
configuration.
For a dual-processor configuration, 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 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, HP 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 RBSU, HP 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 RBSU.