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

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Removing the system board
Complete the following steps to remove the system board.
Note:
v
Read “Installation guidelines” on page 25.
v
Read the safety notices at “Safety information” on page 101.
v Read “Handling static-sensitive devices” on page 25.
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 and bezel” on page 27).
5. Remove all adapters (see “Working with adapters” on page 28).
6. Remove all fans (see “Replacing a fan assembly” on page 45).
7. Remove the air baffle.
8. Remove the riser card (see “Riser card” on page 61).
9. Remove the screw securing the PCI adapter shield in position, and remove the
PCI adapter shield, making sure to put them in a safe place for reinstallation.
10. Remove the SCSI backplane (see “SCSI backplane” on page 60).
11. Disconnect all cables from the system board.
12. Remove the heat sinks from all the microprocessors and set them aside on a
static-protected surface for reinstallation (see “Installing a microprocessor” on
page 39).
13. Remove all microprocessors and set them aside on a static-protected surface
for reinstallation (see “Installing a microprocessor” on page 39).
14. Remove the memory modules and set them aside on a static-protected surface
for reinstallation (see “Installing memory modules” on page 37).
Note: The illustrations in this publication might differ slightly from your
hardware.
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Eserver
325 Type 8835: Hardware Maintenance Manual and Troubleshooting Guide