IBM eserver 630 6C4, Service Manual

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CEC Backplane Replacement
To replace the CEC backplane (system board), do the following:
1. Before handling any card, board, or memory DIMM, be sure to use your
electrostatic discharge strap to minimize static-electric discharge. Refer to
“Handling Static-Sensitive Devices” on page 348.
2. If necessary, remove the CEC backplane from the antistatic package.
3. Carefully grasp the CEC backplane along two edges and align the retaining screw
holes with its mating screw holes located on the system chassis.
Note: Care should be taken when replacing the CEC backplane. Standoffs
attached to the chassis base may damage the components attached to the
bottom of the CEC backplane.
4. Replace the CEC backplane and slide it toward the back of the system. Ensure
that all of the back connectors located on the CEC backplane are positioned
correctly through the rear chassis bulkhead.
5. Replace the retaining screws that secure the CEC backplane to the system
chassis.
Note: For proper alignment, insert all screws and finger-tighten only. Ensure the
CEC backplane is not binding.
6. Tighten all CEC backplane retaining screws, including the 16 threaded standoffs
that secure each connector to the back of the system chassis.
7. Reconnect all power, signal, and SCSI cables that attach to the CEC backplane.
8. Replace the plastic membrane over the CEC backplane.
9. Replace the front power supply and processor support bracket.
10. Replace the processor cooling fan cage assembly.
11. Replace the eight screws that secure the processor cooling fan cage assembly to
the rear chassis.
12. Replace the 16 threaded standoffs that secure the CEC backplane rear connectors
to the rear chassis.
13. Replace the processor cooling fans as described in “Hot-Swap Fan Assembly
Replacement” on page 397.
14. Replace the PCI adapter cooling fan stabilizing cage by installing the two tabs
located on the bottom edge of the cage into their mating slots located on the
chassis. Secure the cage to the chassis with a retaining screw.
15. Replace the PCI cooling fans as described in “Hot-Swap Fan Assembly
Replacement” on page 397.
16. Replace the PCI riser card as described in “PCI Riser Card Replacement” on
page 412.
17. Replace all PCI Adapters as described in “Adding or Replacing a
Non-Hot-Pluggable PCI Adapter” on page 377.
18. Replace the processor assembly and, if applicable, the processor assembly filler
panel.
19. Replace the media device support shelf. Tighten the thumbscrew located on the
media device support shelf.
Chapter 9. Removal and Replacement Procedures
455