System Board - HP Dx5150 - Compaq Business Desktop Reference Manual

Removal and Replacement Procedures— Small Form Factor (SFF) Chassis

7.16 System Board

1. Prepare the computer for disassembly
2. Remove the access panel and rotate the computer so the system board is parallel to the table
to make it easier to work on
3. Remove the front bezel
4. Rotate the drive cage to its full open position.
5. Remove all expansion cards
6. Remove the memory modules
7. Remove the heatsink
8. Remove the processor
9. Disconnect all cables connected to the system board, noting their location for reinstallation.
10. Remove the eight screws that secure the system board to the chassis.
11. Slide the board towards the front of the computer for the rear I/O connectors to clear the
chassis then, remove the system board from the chassis.
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CAUTION: When installing a new system board, a new processor backing plate must be
attached to the system board. The heatsink will not attach properly if this plate is not
installed.
7–30
(Section 7.1, "Preparation for
(Section 7.3, "Computer Access
(Section 7.4, "Front Bezel,").
(Section 7.7, "PCI Expansion
(Section 7.6, "Memory
(Section 7.14, "Heatsink
(Section 7.15, "Processor").
361685-001
Disassembly").
Panel").
Card").
Modules").
Assembly").
Service Reference Guide, dx5150