Compaq dx7500 Service Reference Guide: HP Compaq dx7500 Business PC - Page 94

System Board

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6. Press the release latch on the chassis base, and then lift up the rear of the power supply to disengage it from the chassis. 7. Slide the power supply toward the front/bottom of the computer, then lift the power supply out of the computer. To install the power supply, reverse the removal procedure. 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 1. Prepare the computer for disassembly (Preparation for Disassembly on page 47). 2. Remove the access panel (Access Panel on page 48). 3. Lay the computer on its side with the rear facing toward you. 4. Remove the front bezel (Front Bezel on page 49). 5. Remove an expansion cards (Expansion Cards on page 55). 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. 84 Chapter 7 Removal and Replacement Procedures Microtower (MT) Chassis

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6.
Press the release latch on the chassis base, and then lift up the rear of the power supply to
disengage it from the chassis.
7.
Slide the power supply toward the front/bottom of the computer, then lift the power supply out of
the computer.
To install the power supply, reverse the removal procedure.
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
1.
Prepare the computer for disassembly (
Preparation for Disassembly
on page
47
).
2.
Remove the access panel (
Access Panel
on page
48
).
3.
Lay the computer on its side with the rear facing toward you.
4.
Remove the front bezel (
Front Bezel
on page
49
).
5.
Remove an expansion cards (
Expansion Cards
on page
55
).
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.
84
Chapter 7
Removal and Replacement Procedures Microtower (MT) Chassis