HP 500B - Microtower PC Maintenance And Service Manual page 45

4. Apply the thermal grease provided in the spares kit to the top of the processor and install the heat
sink atop the processor.
5. Go to step 7.
6. If using a new heat sink, remove the protective covering from the bottom of the heat sink and place
it in position atop the processor.
7. Secure the heat sink to the system board and system board tray with the 4 captive screws and
attach the heat sink control cable to the system board.
CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an
X) to evenly seat the heat sink 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.
NOTE: After installing a new processor onto the system board, always update the system ROM
to ensure that the latest version of the BIOS is being used on the computer. The latest system ROM
BIOS can be found on the Web at: http:\\h18000.www1.hp.com/support/files.
Processor (Intel) — Model 500B 37