HP Pro 4300 Maintenance & Service Guide HP Compaq Pro 4300 All-in-One Busi - Page 78

System Board

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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 eight 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 26). 2. Remove the center access panel (see Hinge Cover Panel on page 27). 3. Remove the memory access panel (see Memory Access Panel on page 29). 4. Remove the memory modules (see Memory on page 38). 5. Remove the drive access panel (see Drive Access Panel on page 31). 6. Remove the stand (see Stand on page 54). 7. Remove the optical drive (see Optical Drive on page 33). 8. Remove the heat sink cover (see Heat Sink Cover on page 45). 9. Remove the thermal module/heat sink (see Heat Sink (Thermal Module) on page 47). 10. Remove the top panel (see Top Panel on page 51). 11. Remove the rear cover (see Rear Cover on page 55). 12. Remove the system board cover (see System Board Shield on page 62). 13. Remove the WLAN module (see WLAN Module on page 64). 14. Remove the processor (see Processor on page 49). 15. Disconnect all cables from the system board, noting their location for reinstallation. 70 Chapter 6 Removal and Replacement Procedures All-in One (AIO) Chassis

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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
e
ight 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
26
).
2.
Remove the center access panel (see
Hinge Cover Panel
on page
27
).
3.
Remove the memory access panel (see
Memory Access Panel
on page
29
).
4.
Remove the memory modules (see
Memory
on page
38
).
5.
Remove the drive access panel (see
Drive Access Panel
on page
31
).
6.
Remove the stand (see
Stand
on page
54
).
7.
Remove the optical drive (see
Optical Drive
on page
33
).
8.
Remove the heat sink cover (see
Heat Sink Cover
on page
45
).
9.
Remove the thermal module/heat sink (see
Heat Sink (Thermal Module)
on page
47
).
10.
Remove the top panel (see
Top Panel
on page
51
).
11.
Remove the rear cover (see
Rear Cover
on page
55
).
12.
Remove the system board cover (see
System Board Shield
on page
62
).
13.
Remove the WLAN module (see
WLAN Module
on page
64
).
14.
Remove the processor (see
Processor
on page
49
).
15.
Disconnect all cables from the system board, noting their location for reinstallation.
70
Chapter 6
Removal and Replacement Procedures All-in One (AIO) Chassis