NOTICE: Before disconnecting a device from the computer, wait 10 to 20
seconds after disconnecting the computer from its electrical outlet. Before
removing a component from the system board, verify that the standby power
light on the system board has turned off. To locate this light, see your
computer's illustration in "System Board Components."
Disconnect the fan power cable from the system board.
Disconnect the 12-volt power cable from the system board.
On the mini-tower computer, rotate the airflow shroud.
Airflow Shroud Rotation—Mini-Tower Computer
On the small desktop computer, the heat sink is attached to the
blower. Remove the securing clips to remove the heat sink/blower
assembly.
On the mini-tower computer, press down on the metal securing latches to release the securing clips from the retention base. Then lift the clips out of the tabs on the retention base and away from the heat sink.
NOTICE: Lay the heat sink down with the thermal grease facing upward. Do
not lay the heat sink down with the thermal grease touching the work surface.
Lift the heat sink or heat sink/blower assembly away from the
microprocessor.
On the small desktop computer, remove the two screws on the blower
to remove it from the heat sink.
NOTICE: Do not discard the original heat sink and securing clips unless you
are installing a microprocessor upgrade kit from Dell. If you are not installing
a microprocessor upgrade kit from Dell, reuse the original heat sink, blower,
and securing clips when installing your new microprocessor.
The ZIF socket has a lever-type handle that secures and releases the microprocessor from the ZIF socket
Pull the socket lever up straight up until the microprocessor is released.
NOTICE: Be careful not to bend any of the pins when you remove the
microprocessor package from the ZIF socket. Bending the package pins can
permanently damage the microprocessor.
Microprocessor Removal
1
ZIF socket lever
3
microprocessor
2
ZIF 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 package correctly in the
socket to avoid permanent damage to the microprocessor and the computer.
If the release lever on the ZIF socket is not extended to the release
position, move it to that position.
Align pin-1 (the beveled corner) of the microprocessor package and
pin-1 of the socket.
NOTE: Pin 1 of the
microprocessor is
indicated by a small
triangle in one corner of
the microprocessor. Pin 1
of the socket is indicated
by a small triangle in one
corner of the socket.
Microprocessor Installation
1
pin-1 corners of microprocessor and the socket
NOTICE: The microprocessor pins are delicate. To avoid damage, ensure that
the microprocessor aligns properly with the socket, and do not use excessive
force when installing the processor.
Carefully set the microprocessor in the socket and press it down lightly
to seat it.
Rotate the lever toward the socket until it snaps into place, securing
the microprocessor package.
NOTICE: If you are not installing a microprocessor kit from Dell, reuse the
original heat sink and securing clips when replacing the microprocessor.
If you are installing a new heat sink, remove the film covering the
bottom of the heat sink.
On the small desktop computer, reinstall the two screws that attach
the blower to the heat sink.
Lower the heat sink or blower/heat sink assembly to the
microprocessor so that the heat sink fits in the retention base.
Fit the end of each securing clip that does not have the latch over its
tab on the retention base. Then, fit the middle of the clip over the
middle tab on the retention base, and press down on the clip's latch to
secure the clip to the retention base.
On the mini-tower computer, lower the airflow shroud over the heat
sink.
Plug the cooling fan power cable its connector on the system board.
Plug the 12-volt power cable into its connector on the system board.
Close the computer cover, reconnect your computer to their electrical
outlets, and turn them on.
As the computer boots, it detects the presence of the new microprocessor and automatically changes the computer configuration information in system setup.
NOTE: After you open
and close the cover, the
chassis intrusion detector
causes the following
message to be displayed
at the next computer
start-up: ALERT!
Cover was
previously
removed.
Enter system setup and confirm that the system data area correctly
identifies the type of installed microprocessor.
For instructions on using system setup, see your User's Guide.
While in system setup, reset the Chassis Intrusion option by pressing
the left- or right-arrow key to select Reset and then choosing Enabled,
Enabled-Silent, or Disabled.
NOTE: If a setup
password has been
assigned by someone else,
contact the network
administrator for
information on resetting
the chassis intrusion
detector.
Run the Dell Diagnostics to verify that the new processor is operating
correctly.
