IBM 8688 manual

3.Remove the power supplies. See “Removing and replacing a hot-swap power supply” on page 90.

4.Open the top cover (see “Opening the cover” on page 88).

5.Remove fans 1 and 2 (see “Replacing fan 1 or 2” on page 107).

6.Remove the memory-board assembly. See “Memory board” on page 115 for details.

7.Remove the shipping thumbscrews from the right side of the server, and lift the retention bracket from the server.

8.Remove the processor-board assembly. See “Processor-board assembly” on page 119 for details.

9.If the system contains a removable cable retainer, turn the thumbscrew to remove it.

10.Disconnect all cables attached to the PCI-X board assembly
1.

11.Remove the shipping thumbscrews from the left side of the server, if installed
2.

12.Disconnect the cables to the hard disk drive backplane (see “Hard disk drive backplane” on page 138).

Note: Failure to disconnect the hard disk drive backplane cables might result in the PCI-X board assembly becoming entangled in these cables at step 14.

13.Pivot the release handle
3.

14.Slide the PCI-X board assembly as far forward as possible, and then slightly to the right
4.

15.Disconnect the PCI hot-swap cable, and lift the PCI-X board assembly straight up and out of the server
5.

16.To reinstall the PCI-X board assembly, reverse these steps.

Note: The PCI-X board assembly connects to the chassis with tabs that connect with seven slots on the bottom of the chassis and two slots on the side of the chassis. Line up the tabs on the PCI-X board assembly with the slots on the chassis, and then slide the PCI-X board assembly into place.

124IBM xSeries 450 Type 8688: Hardware Maintenance Manual and Troubleshooting Guide