IBM 8688 manual Processor-board VRM

9.Carefully install the memory-board assembly. See “Memory board” on page 115 for instructions.

Processor-board VRM

Before you begin:

vRead “Installation guidelines” on page 77.

vRead the safety notices at “Safety notices (multilingual translations)” on page 201.

vRead “Handling static-sensitive devices” on page 200.

To remove a VRM from the processor board, complete the following steps:

1.Turn off the server (see “Turning off the server” on page 8), and disconnect all power cords and external cables.

2.Pull open the memory-board retaining latches, and remove the memory-board assembly. See “Memory board” on page 115 for details.

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

4.Remove the processor-board assembly. See “Processor-board assembly” on page 119.

5.Pull the VRM-retention latches apart, and lift the VRM out of the processor-board VRM connector.

To replace the processor-board VRM, complete the following steps:

1.Turn off the server (see “Turning off the server” on page 8), and disconnect all power cords and external cables.

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

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

4.Remove the processor-board assembly. See “Processor-board assembly” on page 119.

5.Open the retaining clip on each end of the VRM connector.

6.Touch the static-protective package containing the VRM to any unpainted metal surface on the server. Then, remove the VRM from the package.

122IBM xSeries 450 Type 8688: Hardware Maintenance Manual and Troubleshooting Guide