Maintenance & Service Guide HP Elite 7300 and 7500 Microtower, HP Pro 3300 and 3305 Microtower and HP Pro 3300 Small Form Factor

6. If you are removing an AMD processor, rotate the locking lever to its full open position (1), and
then carefully lift the processor from the socket (2).
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.
CAUTION: The heat sink must be installed within 24 hours of installing the processor to
prevent damage to the processor’s solder connections.
To install a new processor:
1. Place the processor in its socket.
2. If installing an Intel processor, close the retainer.
3. Secure the locking lever.
If reusing the existing heat sink, go to step 4.
If using a new heat sink, go to step 7.
4. If reusing the existing heat sink, clean the bottom of the heat sink with the alcohol pad provided
in the spares kit.
5. Apply the thermal grease provided in the spares kit to the top of the processor and install the
heat sink atop the processor.
6. Go to step 8.
7. If using a new fan sink, remove the protective covering from the bottom of the fan sink and place
it in position atop the processor.
8. Secure the fan sink to the system board and system board tray with the 4 captive screws and
attach the fan 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.
96 Chapter 7 Removal and Replacement Procedures Microtower (MT) Chassis