Replacing A Fan Assembly - IBM 8676 - Eserver xSeries 335 Hardware Maintenance Manual And Troubleshooting Manual

9. If you have other options to install, install them now. Otherwise, continue with

Replacing a fan assembly

The server comes with five replaceable fans.
Attention:
cooling.
Complete the following steps to replace the fan assembly. Use this procedure to
replace any fan in the server.
Note:
1. Read "Safety information" on page 119 and "Installation guidelines" on page 37.
2. Turn off the server and all attached peripheral devices. Disconnect all power
3. Remove the server from the rack; then, remove the server cover (see
4. Determine which fan to replace by checking the LED at each fan; a lit LED
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xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide
heat sink and position the heat sink on top of the microprocessor. Press firmly
on the captive screws and tighten them, alternating between screws until they
are tight. Do not overtighten the screws by using excessive force.
"Completing the installation" on page 59.
If a fan fails, replace it within 48 hours to help ensure adequate
cords; then, disconnect all external signal cables from the server.
"Removing the cover and bezel" on page 44).
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For information about handling these
devices, see "Handling electrostatic discharge-sensitive devices" on page 122.
indicates the fan to replace.
Heat sink
Microprocessor 2
Heat sink
retaining module
Microprocessor 2
VRM