Replacing The System Board Assembly - Dell 2100 User Manual

•
FAN (for the fan cable)
•
AUXFAN (for the cable to an auxiliary fan)
•
POWER (for the power supply cable)
•
POWER3V (for the 3-volt power cable)
7. To work on the system board, place the system
board assembly on a flat surface, with the system
board facing up.

Replacing the System Board Assembly

To replace the system board assembly in the chassis, per-
form the following steps:
1. Reconnect the cables to the system board.
Position the system board assembly near the chassis,
and reconnect all cables you disconnected in step 6 of
the preceding procedure. Double-check the cable con-
nections before continuing.
2. Install the system board assembly in the chassis.
Facing the right side of the computer, hold the sys-
tem board/mounting plate assembly in position.
Align the input/output (I/O) connectors on the back
of the system board with the openings in the back of
the chassis, insert the system board mounting plate
under the two tabs on the chassis (Figure 6-6), and
then slide the system board assembly toward the
back of the computer until the mounting screw holes
align with the holes in the chassis.
tabs (2)
system board cables
Figure 6-6. Replacing the System Board
Assembly
3. Replace and tighten the four mounting-plate
screws.
4. Replace the computer cover as described in
"Replacing the Computer Cover," earlier in this
chapter.
Working Inside Your Computer
system board
mounting plate
6-83