Data General AViiON 530 Series, Customer Documentation, Page: 171 / 266

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Chapter 10
Replacing the System Board
This chapter describes how to replace a failed system board. Figure 10Ć1 shows an
exploded view of the system board and the components that mount on the system
board.
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System board
I/O expansion board
Graphics board
CPU complex board(s)
Memory modules
Figure 10-1 AViiON 530 and 4600 Series System Board and Mounted Components
Removing the System Board
Before you can remove the system board, you need to prepare your worksite, remove
the computer unit's right side cover, and attach the ESD wrist strap, as described in
Chapter 6, Expanding and Maintaining Your Computer System."
To remove the system board, follow the steps below. You will need a small (#1) and a
medium (#2) Phillips screwdriver, and a small flat-blade screwdriver.
1. Remove all the memory modules as described in Chapter 8, Adding or Replacing
Memory Modules."
2. Remove the CPU complex board(s) as described in Chapter 9, Adding or
Replacing a CPU Complex and System Board Options."