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Fan options
CAUTION: To avoid damage to server components, fan blanks must be installed in fan bays 1 and 2 in a single-
processor configuration.
CAUTION: To avoid damage to the equipment, do not operate the server for extended periods of time if the server
does not have the optimal number of fans installed. Although the server might boot, Hewlett Packard Enterprise
does not recommend operating the server without the required fans installed and operating.
Valid fan configurations are listed in the following table.
Configuration
1 processor
1 processor 24-SFF or
12-LFF configuration
with high-performance
fans
2 processors
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).
Installing high-performance fans
CAUTION: Caution: To prevent damage server, ensure that all DIMM latches are closed and locked before installing
the fans.
Fan bay 1
Fan bay 2
Fan blank
Fan blank
Fan
Fan
Fan
Fan
Fan bay 3
Fan bay 4
Fan
Fan
Fan
Fan
Fan
Fan
Hardware options installation
Fan bay 5
Fan bay 6
Fan
Fan
Fan
Fan
Fan
Fan
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