HP 500B - Manual (Page 55)

Figure 2-59 Power supply securing features
System Board
When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
● Memory modules
● Processor
● Expansion modules
To remove the system board:
1. Prepare the computer for disassembly ( Preparation for Disassembly on page 4 ).
2. Remove the access panel ( Access Panel on page 5 ).
3. Lay the computer on its side with the rear facing toward you.
4. Remove the front bezel ( Front Bezel on page 7 ).
5. Remove an expansion cards ( Expansion Cards on page 13 ).
6. Disconnect the power, and data cables from the back of all installed drives.
7. Disconnect all cables from the system board.
8. Remove the eight screws that secure the system board to the chassis.
System Board 47