Removing the i/o panel – Dell Precision T7400 (Late 2007) User Manual
Page 148
148
Adding and Replacing Parts
Removing the I/O Panel
1 Follow the procedures in "Before You Begin" on page 139.
CAUTION:
Your computer is heavy (it has an approximate minimum weight of 55
lbs) and can be difficult to maneuver. Seek assistance before attempting to lift,
move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid
injury; avoid bending over while lifting. See your
Product Information Guide for
other important safety information.
CAUTION:
The computer stand should be installed at all times to ensure
maximum system stability. Failure to install the stand could result in the computer
tipping over, potentially resulting in bodily injury or damage to the computer.
2 Remove the
computer cover (see "Removing the Computer Cover" on
3 Remove any full-length expansion cards (see "Removing an Expansion
4 If a graphics riser card is installed, remove it:
a
Remove its four screws.
b
Disconnect its power cable.
c
Move it slightly up and to the right at an angle to free it from the card
fan and the memory-riser support structure.
d
Set the riser aside.
5 Loosen the captive thumbscrews that secure the memory shroud and lift
to remove it from the computer.
6 Disconnect the speaker cable from the system board.
7 Disconnect the front fan and the card fan from the system board.
8 Unscrew the two screws that hold the processor and card fan case in place
and lift it away from the computer.
9 Disconnect the control-panel cable from the I/O panel connector by
pulling with the cable loop.
NOTICE:
Carefully note the routing of each cable before you disconnect it, so that
you are sure to re-route cables correctly. An incorrectly routed or a disconnected
cable could lead to computer problems.
10 Note the routing of each cable as you disconnect all cables attached to the
I/O panel.