HP (Hewlett-Packard) 8080 ELITE BUSINESS Personal Computer User Manual


 
Processor
1. Prepare the computer for disassembly (Preparation for Disassembly on page 87).
2. Remove the access panel (
Computer Access Panel on page 95).
3. Remove the fan shroud (
Baffle on page 128).
4. Remove the heat sink (
Heat sink on page 134).
5. Rotate the locking lever to its full open position (1).
6. Raise and rotate the microprocessor retainer to its fully open position (2).
7. 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 6-61 Removing the processor
To install a new processor:
1. Place the processor in its socket and close the retainer.
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.
3. If reusing the existing heat sink, clean the bottom of the heat sink with the alcohol pad provided
in the spares kit.
CAUTION: Before reinstalling the heat sink you must clean the top of the processor and the
bottom of the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has
evaporated, apply thermal grease to the top of the processor from the syringe supplied in the
spares kit.
Processor 135