Compaq dx1000 Service Reference Guide: Compaq dx1000 Microtower PC - Page 72

System Board

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System Board 1. Prepare the computer for disassembly (Preparation for Disassembly on page 30). 2. Remove the computer access panel (Computer Access Panel on page 34). 3. Remove all expansion boards (Expansion Cards on page 42). 4. Disconnect all cables connected to the system board, noting their location for reinstallation. 5. Remove the heat sink (Heat sink on page 62). 6. Remove the remaining six screws that secure the system board to the chassis. Figure 6-43 Removing the system board 7. Slide the system board toward the front of the computer to disengage the I/O panel from the rear of the chassis. 8. Lift the system board out of the computer. When reinstalling the system board, first insert the I/O panel back into the slots in the rear of the chassis, and then align the board with the chassis screw holes. NOTE: When replacing the system board, you must change the chassis serial number in the BIOS. 66 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis

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System Board
1.
Prepare the computer for disassembly (
Preparation for Disassembly
on page
30
).
2.
Remove the computer access panel (
Computer Access Panel
on page
34
).
3.
Remove all expansion boards (
Expansion Cards
on page
42
).
4.
Disconnect all cables connected to the system board, noting their location for reinstallation.
5.
Remove the heat sink (
Heat sink
on page
62
).
6.
Remove the remaining six screws that secure the system board to the chassis.
Figure 6-43
Removing the system board
7.
Slide the system board toward the front of the computer to disengage the I/O panel from the rear
of the chassis.
8.
Lift the system board out of the computer.
When reinstalling the system board, first insert the I/O panel back into the slots in the rear of the chassis,
and then align the board with the chassis screw holes.
NOTE:
When replacing the system board, you must change the chassis serial number in the BIOS.
66
Chapter 6
Removal and Replacement Procedures Microtower (MT) Chassis