HP Pro 4300 Maintenance & Service Guide HP Compaq Pro 4300 All-in-One Busi - Page 57

Processor, Preparing to Disassemble the Computer, on Hinge Cover Panel, Memory Access Panel

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Processor 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 heat sink cover (see Heat Sink Cover on page 45). 6. Remove the heat sink (see Heat Sink (Thermal Module) on page 47). 7. Rotate the locking lever to its full open position (1). 8. Raise and rotate the microprocessor retainer to its fully open position (2). 9. Carefully lift the processor from the socket (3). CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and handling them could cause irreparable damage. Once pins are damaged it may be necessary to replace the system board. The heat sink must be installed within 24 hours of installing the processor to prevent damage to the processor's solder connections. Figure 6-35 Removing the processor To install a new processor: 1. Place the processor in its socket and close the retainer. Make sure the slot in the processor fits into the post on the socket. 2. Secure the locking lever. If reusing the existing heat sink, go to step 3. If using a new heat sink, go to step 6. Processor 49

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Processor
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 heat sink cover (see
Heat Sink Cover
on page
45
).
6.
Remove the heat sink (see
Heat Sink (Thermal Module)
on page
47
).
7.
Rotate the locking lever to its full open position
(1)
.
8.
Raise and rotate the microprocessor retainer to its fully open position
(2)
.
9.
Carefully lift the processor from the socket
(3)
.
CAUTION:
Do NOT handle the pins in the processor socket. These pins are very fragile and
handling them could cause irreparable damage. Once pins are damaged it may be necessary to
replace the system board.
The heat sink must be installed within 24 hours of installing the processor to prevent damage to
the processor’s solder connections.
Figure 6-35
Removing the processor
To install a new processor:
1.
Place the processor in its socket and close the retainer. Make sure the slot in the processor fits
into the post on the socket.
2.
Secure the locking lever. If reusing the existing heat sink, go to step 3. If using a new heat sink,
go to step 6.
Processor
49