IBM 8688 manual Memory-board assembly, Memory board, Before you begin

Chapter 5. Field replaceable units

The following information describes procedures for removing and installing certain components inside the system. Only a qualified service technician is authorized to replace the components described in this section.

Important: The field replaceable unit (FRU) procedures are intended for trained servicers who are familiar with IBM xSeries products.

Note: Before servicing this system, read “Installation guidelines” on page 77 and “Safety information” on page 197.

Memory-board assembly

The memory-board assembly consists of the memory board, memory, memory-board VRM, and the memory switch card and cable. The following sections describe how to remove the memory board, memory-board VRM, and the memory switch card and cable. For instructions to remove and replace memory, see “Installing memory” on page 98.

Memory board

Note: When replacing the memory board, you must either update the system with the latest firmware or restore the pre-existing firmware that the customer provides on a CD image. See “Updating the firmware” on page 39.

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.

Complete the following steps to replace a memory board:

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

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

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