Hot-Plug Fans; Replacing Rear Accessed Hot-Plug Fans - HP ProLiant DL785 User Manual

2. Flip down the SID for easier viewing.
CAUTION:
the down position.

Hot-plug fans

The server supports redundant hot-plug fans, each with two individual fans rotors, in a 5+1
configuration to provide proper airflow to the server. The airflow strategy contains two thermal
zones with three fan units in the bottom zone (accessed from the server rear), and three fan units
in the upper zone (accessed internally). See
WARNING!
• Remove watches, rings, or other metal objects.
• Use tools with insulated handles.
• Do not place tools or metal parts on top of batteries.

Replacing rear accessed hot-plug fans

To replace a rear accessed hot-plug fan:
1. Identify the failed fan by locating an amber LED on the Systems Insight Display.
2. Press down on the fan release button and pull the fan housing unit straight out from the
rear of the chassis until it stops.
3. Insert your thumb and forefinger into the openings on the top of the fan and squeeze until
the fan releases from the socket.
34 Operations
Do not block airflow by pushing the SID flush against the server while it is in
To prevent personal injury from hazardous energy:
"Fan locations" (page 21).