Disconnect the cooling fan power cable from the FAN connector on the system board (see
"System Board Components").
Disconnect the power cable from the 12VPOWER connector on the system board.
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.
Pull up and rotate the airflow shroud.
Remove the heat sink:
Press the tab on the green securing clip to remove the clip from the retention base.
1
securing clip
2
tab
3
slot
4
retention base
Remove the heat sink by pressing the retention base tab while lifting one end of the heat
sink.
NOTICE: Lay the heat sink down with the thermal material facing upward.
1
heat sink
2
retention base tab
3
retention base
NOTICE: If you are installing a processor upgrade kit from Dell, discard the original heat sink. If you are
not installing a processor upgrade kit from Dell, reuse the original heat sink when you install your new
processor.
NOTICE: Be careful not to bend any of the pins when you remove the processor from the socket.
Bending the pins can permanently damage the processor.
Pull the release lever straight up until the processor is released, and then remove the processor
from the socket.
1
release lever
2
processor
3
socket
NOTICE: Ground yourself by touching an unpainted metal surface on the back of the computer.
NOTICE: Be careful not to bend any of the pins when you unpack the processor. Bending the pins can
permanently damage the processor. If any of the pins on the processor appear to be bent, contact Dell
for instructions on obtaining technical assistance.
Unpack the new processor.
1
pin-1 corners of the processor and socket aligned
NOTICE: You must position the processor correctly in the socket to avoid permanent damage to the
processor and the computer when you turn on the computer.
If the release lever on the socket is not fully extended, move it to that position.
Align the pin-1 corners of the processor and socket.
NOTICE: When you place the processor in the socket, ensure that all of the pins fit into the
corresponding holes on the socket.
Set the processor lightly in the socket and ensure that all pins are headed into the correct
holes. Do not use force, which could bend the pins if the processor is misaligned. When the
processor is positioned correctly, press it with minimal pressure to seat it.
When the processor is fully seated in the socket, pivot the release lever back toward the socket
until it snaps into place to secure the processor.
NOTICE: If you are not installing a processor upgrade kit from Dell, reuse the original heat sink when
you replace the processor.
If you installed a processor replacement kit from Dell, return the original heat sink and processor to Dell in the same package in which your replacement kit was sent.
Install the heat sink:
Place one end of the heat sink under the tab on one side of the retention base.
Lower the heat sink until the heat sink fits securely under the tab on the retention base.
1
heat sink
2
retention base tab
3
retention base
Insert the securing clip by placing the notched end of the clip opposite the tab into the
slot on the retention base. Press the securing clip tab and lower the securing clip into
place. Make sure that the notched ends of the securing clip are secured in the retention
base slots.
1
securing clip
2
tab
3
slot
Lower the airflow shroud over the heat sink.
Reconnect the cooling fan power cable to the FAN connector on the system board.
Reconnect the power cable to the 12VPOWER connector on the system board.
