User`s guide

User Guide
187
www.bull.com
Replacing a Cooling Fan
Warning
This procedure must only be performed by a service represen-
tative certified by Bull.
Caution
The fans are NOT hot swappable.
The blower fans can be individually replaced if one of them fails. If a fan in the power
supply fails, the power supply must be replaced. Use the steps below to replace a
system blower fan or the PCI cooling fan.
Note: The fans that are integrated into the power supply
cannot be replaced separately. If one of the fans in the power
supply fails, the power supply must be replaced.
Replacing the System Blower Fans
1. Make sure the power switches for the computer, video monitor and any
peripheral devices are turned OFF and unplug the power cord (see “
General
Safety Information” on page 132).
2. Disconnect the monitor and peripheral devices from the system.
3. Remove the server cover. Refer to “
Removing the Server Cover” on page 160.
4. Remove the processor air duct (see letter “A” in the figure below). Refer to
“Removing the Processor Air Duct” on page 162.