Dell Dimension 4600 - Manual (Page 24)

5. Remove the microprocessor heat sink:
a. Twist the heat sink from side to side to break the seal.
a. Remove the retention module clip by pressing in on the tab and lifting the retention module clip up.
b. Pull the release tab out until the heat sink is released.
c. Lift the heat sink away from the microprocessor.
6. Remove the microprocessor from the socket.
Leave the release lever extended in the release position so that the socket is ready for the new microprocessor.
CAUTION: The heat sink can get very hot during normal operation. Be sure that the heat sink has had sufficient time to cool before you touch it.
NOTICE: Lay the heat sink down with the thermal grease facing upward.
NOTICE: If you are installing a microprocessor upgrade kit from Dell, discard the original heat sink. If you are not installing a microprocessor upgrade kit
from Dell, reuse the original heat sink when you install your new microprocessor.
NOTICE: Be careful not to bend any of the pins when you remove the microprocessor from the socket. Bending the pins can permanently damage the
microprocessor.