Disconnect the cooling fan power cable from the FAN connector on
the system board.
Disconnect the power cable from the 12VPOWER connector on the
system board.
Lift up the airflow shroud.
Airflow Shroud Rotation
Remove the heat sink.
Press and lower the green lever on the retention mechanism until
it is parallel to the system board.
Gently rock the heat sink and then slightly twist it as you lift it
from the microprocessor.
Heat Sink Removal
1
heat sink
2
lever
3
retention base
NOTICE: Lay the heat sink down with the thermal solution 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 and blower when you install
your new microprocessor.
Pull the release lever straight up until the microprocessor is released.
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.
Microprocessor Removal
1
release lever
2
microprocessor
3
socket
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.
NOTICE: You must position the microprocessor correctly in the socket to
avoid permanent damage to the microprocessor and the computer.
If the release lever is not extended to the release position, move it to
that position.
Align pin 1 (the imprinted corner) of the microprocessor and pin 1 of
the socket.
Microprocessor Installation
1
pin-1 corners of microprocessor and socket aligned
NOTICE: Microprocessor pins are delicate. To avoid damage, ensure that the
microprocessor aligns properly with the socket, and do not use excessive force
when you install the processor.
Carefully set the microprocessor in the socket and press it down lightly
to seat it.
Rotate the release lever back toward the system board until it snaps
into place, securing the microprocessor.
Install the heat sink.
Insert the notched end of the heat sink onto the end of the
retention base that is opposite the hinge.
Lower the heat sink until it fits securely in the base.
Raise the retention lever and press until the heat sink is secured. You
will feel the lever pause once it is at a 90-degree angle. Keep pressing
on the lever another 30 degrees, ensuring that it is in the locked
position.
Heat Sink Replacement
1
heat sink
2
lever
3
hinge
4
retention base
5
notch
Lower the airflow shroud over the heat sink.
If you installed a microprocessor replacement kit from Dell, return the original heat-sink assembly and microprocessor to Dell in the same package in which your replacement kit was sent.
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.
Close the computer cover.
NOTICE: To connect a network cable, first plug the cable into the network
wall jack, and then plug it into the computer.
Connect your computer and devices to electrical outlets, and turn
them on.
After you open and close the cover, the chassis intrusion detector, if enabled, causes the following message to appear on the screen at the next computer start-up:
NOTE: If a setup password has been assigned by someone else, contact
your network administrator for information on resetting the chassis
intrusion detector.
