HPE ProLiant ML350, Maintenance And Service Manual

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Fan population rules
The following table lists the valid fan configurations.
Configuration Fan 1 Fan 2 Fan 3 Fan 4 Fan 5 Fan 6 Fan 7 Fan 8
Single processor –
Non-Redundant Fan
blank Fan Fan Fan Empty Empty Empty Empty
Dual processor –
Non-Redundant Fan Fan Fan Fan Empty Empty Empty Empty
Single processor -
Redundant Fan
blank Fan Fan Fan Empty Fan Fan Fan
Dual processor -
Redundant Fan Fan Fan Fan Fan Fan Fan Fan
For a single-processor redundant configuration, six fans and one blank is required in specific fan bays for
redundancy. A fan failure causes a loss of redundancy. A second fan failure 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 redundant configuration, all fans are required for redundancy. A fan failure causes a loss
of redundancy. A second fan failure 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:
1. 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.
2. When the Thermal Shutdown feature is disabled in 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.
100 Component identification