Loosen the cover-mounting screw/nut that secures the
cover to the back of the computer.
The screw/nut remains captive.
Place both hands (palms down) on the top cover near each
of the rear corners.
Using your index fingers, push inward on the 2 cover
release latches, slightly press down on the cover, and
slide the cover 1 inch toward the back of the computer.
If the system is a mini tower, lay the system unit on its
right side with the chassis foot off the edge of the work
surface to allow the unit to lay flat.
Face the front of the chassis.
Loosen the cover-mounting screw/nut that secures the
cover to the back of the computer. The screw/nut remains
captive.
Place both hands (palms down) on the top cover near each
of the rear corners.
Using your index fingers, push inward on the 2 cover
release latches, slightly press down on the cover, and
slide the cover 1 inch toward the back of the computer.
Press the 3 tabs on the top and side of the desktop or mini tower chassis to
release the bezel latches.
Swing the top (desktop) or side (mini tower) of the bezel
away from the chassis, and disengage the 3 retaining
hooks on the bottom (desktop) or side (mini tower) of the
bezel.
Removing/Replacing the Plastic Front-Panel Inserts
Press the 2 tabs on the
right side of the front-panel insert, which is attached
to the drive cage, to release the panel latch.
Swing the front-panel insert outward to disengage the
retaining hook on the left side.
Removing/Replacing
the Drive Cage
NOTE: The drive cage is the same in both the
desktop and mini tower system units. Mount the drive cage
in the mini tower system unit so that the drives are
horizontal when the mini tower unit is upright (with the
5.25-inch drive being the top drive).
NOTE: When sliding the new drive into its drive
bay, make sure that both drive rail tabs snap into place.
If they do not, adjust the position of each drive rail by
loosening the screws and sliding the drive rail forward
or backward as needed.
Slide the drive assembly toward the back of the chassis
and lift it out.
To remove the secondary hard-disk drive from the drive
bracket, remove the screw from the right side of the hard-disk
drive, and then pivot the bracket
away from the drive.
NOTE: When reassembling the
hard-disk drive into the bracket, be sure the two tabs
are in the mounting holes on the left side of the drive.
Disconnect the power cables from the power supply, system
board (J8M1 and J9L1 connectors), any drives, and any
expansion cards.
Support the power supply while removing the 2
power-supply mounting screws
from the back of the chassis and the 1 mounting screw
inside the chassis.
Remove the power supply from the chassis.
Removing/Replacing the Microprocessor Fan Assembly
If your system is a mini tower system, place the system
unit on its right side with the chassis foot off the edge
of the work surface to allow the system unit to lay flat.
Disconnect the control-panel cable from the J10E1
connector on the system board.
Press inward on the 4 mounting tabs that secure the card guide assembly to the
front panel, and press down on the tab at the back of the
card guide assembly.
Remove the card guide assembly, including the
control-panel cable.
While pushing outward on each of the SIMM socket's metal
tabs, rotate the SIMM
downward until it is released from its socket.
To replace or reinstall
a SIMM, align the SIMM with the slot in the center of the
socket, with the cutouttoward the back of the
chassis, and press upward slowly until the SIMM snaps
into place.
Removing/Replacing the Heat Sink Assembly and Microprocessor
WARNING: The microprocessor chip
can get extremely hot during system operation. Ensure the
chip is cool before touching it.
Remove the heat-sink retention
clip from the microprocessor/heat sink assembly.
Press on the folded part of the clip with a small
screwdriver to release it.
Lift the microprocessor/heat sink assembly out of its
socket.
Ensure the release lever is in the vertical position
before installing a chip. Be sure to orient the
replacement chip in the same direction as the chip
removed. Hook the microprocessor securing clip over the
socket tab nearest the release lever pivot, and then snap
it over the tab on the other side of the socket.
Removing/Replacing
the Battery
If possible, enter the system setup program and make a
printed copy of the screens for a record of the
configuration information, which may be lost during the
battery replacement.
Disconnect any cables attached to the port connectors on
the I/O panel.
Disconnect all internal cables from the system board.
The cables attached to the Primary IDE, Secondary IDE,
and Floppy connectors each have 2 latches securing them
to the system board. Press the latch on each end of the
cable connector, and pull to release the cable from the
system board.
Remove the screws that
secure the system board to the chassis.
Lift the system board out from the plasticstandoffs, and remove the
board from the system unit.
When installing the new
system board in the computer, push the system board
against the back of the chassis so that the system board
makes firm contact with the I/O gasket to prevent EMI
leakage.
CAUTION: Failure to
install the system board exactly as described may
result in EMI leakage that could interfere with
other electronic devices.
