HP Pro 4300 Maintenance & Service Guide HP Compaq Pro 4300 All-in-One Busi - Page 55

Heat Sink (Thermal Module), Preparing to Disassemble the Computer, on Hinge Cover Panel

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Heat Sink (Thermal Module) The heat sink is secured with five Torx screws - four captured, one not captured. Figure 6-32 Heat sink location To remove the heat sink: 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 drive access panel (see Drive Access Panel on page 31). 5. Remove the stand (see Stand on page 54). 6. Remove the heat sink cover (see Heat Sink Cover on page 45). 7. Loosen the four silver captive Torx screws on the heat sink (1). CAUTION: Remove heat sink retaining screws in diagonally opposite pairs (as in an X) to even the downward forces on the processor. This is especially important as the pins on the socket are very fragile and any damage to them may require replacing the system board. Heat Sink (Thermal Module) 47

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Heat Sink (Thermal Module)
The heat sink is secured with five Torx screws – four captured, one not captured.
Figure 6-32
Heat sink location
To remove the heat sink:
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 drive access panel (see
Drive Access Panel
on page
31
).
5.
Remove the stand (see
Stand
on page
54
).
6.
Remove the heat sink cover (see
Heat Sink Cover
on page
45
).
7.
Loosen the four silver captive Torx screws on the heat sink
(1)
.
CAUTION:
Remove heat sink retaining screws in diagonally opposite pairs (as in an X) to even
the downward forces on the processor. This is especially important as the pins on the socket are
very fragile and any damage to them may require replacing the system board.
Heat Sink (Thermal Module)
47