Replacing A Fan - IBM xSeries 306m Problem Determination And Service Manual

4. Insert the DIMM into the connector by aligning the edges of the DIMM with the
5. Install the cover (see "Installing the cover" on page 31).
6. Slide the server into the rack.
7. If you disconnected any cables or power cords to replace the DIMM, connect
8. Turn on all attached devices and the server.

Replacing a fan

The server comes with five replaceable fans.
To replace any of the five replaceable fans, complete the following steps:
40
IBM xSeries 306m Types 8849 and 8491: Problem Determination and Service Guide
DIMM
slots at the ends of the DIMM connector. Firmly press the DIMM straight down
into the connector by applying pressure on both ends of the DIMM
simultaneously. The retaining clips snap into the locked position when the DIMM
is seated in the connector. If there is a gap between the DIMM and the retaining
clips, the DIMM has not been correctly inserted; open the retaining clips,
remove the DIMM, and then reinsert it.
the cables and power cords (see "Completing the installation" in the Installation
Guide or User's Guide for cabling instructions).
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 27.
2. Turn off the server and all peripheral devices, and disconnect the power cords
and all external cables.
3. Remove the server from the rack and remove the cover (see "Removing the
cover" on page 30).
4. Reconnect the power cord; then, turn on the server.
Attention: For proper cooling and airflow, replace the cover before turning
on the server. Operating the server for extended periods of time (more than 30
minutes) with the cover removed open might damage server components.
5. Determine which fan to replace by checking the LEDs on the system board
(see "System-board LEDs" on page 9); a lit LED indicates the fan to replace.
6. Turn off the server; then, disconnect the power cord again.
7. Remove the failed fan from the server:
a. Disconnect the fan cable from the system board.
b. Grasp the top of the fan with your index finger and thumb and lift the fan
out of the server.
Retaining
clip