IBM 88371RU, Maintenance And Troubleshooting Manual

Page: 74 / 186

Removing the system board
Note:
v
Read “Installation guidelines” on page 15.
v
Read the safety notices at Appendix B, “Safety information,” on page 129.
v
Read “Handling static-sensitive devices” on page 16.
Complete the following steps to remove the system board:
1. Turn off the server and any attached devices.
Note: When replacing the system board, you must either update the server
with the latest firmware or restore the pre-existing firmware that the
customer provides on a diskette or CD image.
2. Disconnect power cords and external cables from the back of the server.
3. Remove the server from the rack.
4. Remove the cover (see “Removing the cover” on page 18).
5. Remove all adapters, including the Remote Supervisor Adapter II SlimLine, if
installed (see “Working with adapters” on page 20).
6. Disconnect all cables from the system board.
7. Remove all heat sinks, microprocessors, and VRMs and set them aside on a
static-protected surface for reinstallation (see “Installing a microprocessor” on
page 37).
8. Remove the memory modules and set them aside on a static-protected surface
for reinstallation (see “Installing memory modules” on page 34).
Note: The illustrations in this publication might differ slightly from your
hardware.
64
xSeries 336 Type 1879 and Type 8837: Hardware Maintenance Manual and Troubleshooting Guide