IBM 8835 - Eserver 325 - 1 GB RAM, Maintenance And Troubleshooting Manual

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Replacing a fan assembly
The server comes with five replaceable fans.
Complete the following steps to replace the fan assembly. Use this procedure to
replace any fan in the server.
1. Read “Safety information” on page 101 and “Installation guidelines” on page 25.
2. Turn off the server and all attached peripheral devices. Disconnect all power
cords; then, disconnect all external signal cables from the server.
3. Remove the server from the rack; then, remove the server cover (see
“Removing the cover and bezel” on page 27).
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For information about handling these
devices, see “Handling static-sensitive devices” on page 25.
4. Determine which fan to replace by checking the LED at each fan; a lit LED
indicates the fan to replace.
Note: For more information about the LEDs, see “Error LEDs” on page 20.
5. Remove the fan from the server:
a. Disconnect the fan cable from the system board.
b. Lift the fan out of the server, noting its orientation in the server.
Fan 5
Fan 4
Fan 3
Fan 2
6. Position the replacement fan correctly:
a. The airflow arrow on the side of the fan must point toward the rear of the
server.
b. Fans 2, 4 and 5 are positioned so that the fan cable exits from the fan near
the top of the server.
c. Fan 3 is positioned so that the fan cable exits from the fan near the floor of
the server (a 180 degree difference from Fans 2, 4 and 5).
Chapter 4. Installing options
45