HP NV517UT Maintenance & Service Guide: Compaq 500B and 505B Minitower Bus - Page 53

System Board

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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 3). 2. Remove the access panel (Access Panel on page 4). 3. Lay the computer on its side with the rear facing toward you. 4. Remove the front bezel (Front Bezel on page 6). 5. Remove an expansion cards (Expansion Cards on page 12). 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 45

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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
3
).
2.
Remove the access panel (
Access Panel
on page
4
).
3.
Lay the computer on its side with the rear facing toward you.
4.
Remove the front bezel (
Front Bezel
on page
6
).
5.
Remove an expansion cards (
Expansion Cards
on page
12
).
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
45