Maintenance & Service Guide HP Compaq Pro 4300 All-in-One Business PC

System Board
The system board is located on the right side of the computer (viewed from the rear) under the heat
sink and system board covers. It is secured with right Torx screws.
Figure 6-62 System board location
To remove the system board:
1. Prepare the computer for disassembly (see
Preparing to Disassemble the Computer
on page 33).
2. Remove the center access panel (see
Hinge Cover Panel on page 34).
3. Remove the memory access panel (see
Memory Access Panel on page 36).
4. Remove the memory modules (see
Memory on page 45).
5. Remove the drive access panel (see
Drive Access Panel on page 38).
6. Remove the stand (see
Stand on page 61).
7. Remove the optical drive (see
Optical Drive on page 40).
8. Remove the heat sink cover (see
Heat Sink Cover on page 52).
9. Remove the thermal module/heat sink (see
Heat Sink (Thermal Module) on page 54).
10. Remove the top panel (see
Top Panel on page 58).
11. Remove the rear cover (see
Rear Cover on page 62).
12. Remove the system board cover (see
System Board Shield on page 69).
13. Remove the WLAN module (see
WLAN Module on page 71).
14. Remove the processor (see
Processor on page 56).
15. Disconnect all cables from the system board, noting their location for reinstallation.
System Board 77