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100 Chapter5
Changing Your Computer Hardware Configuration
Left Side Panel of the System Unit
Left Side Panel of the System Unit
This section explains how to open and close the left side panel of the
system unit. This side panel will have to be opened whenever you need
access to the internal components of the computer.
Opening the Left Side Panel of the System Unit
Perform these steps to open the left side panel.
NOTE When you remove the left side panel, the system unit’s safety interlock
release pin will come out of the safety interlock switch and shutdown the
system without performing the proper shutdown sequences. See Figure
5-2. Therefore, before taking the left side panel of your computer off, do a
reboot -h or press the soft power switch on the front panel of your
computer. Either of these actions will gracefully power down the system.
1. Power off the system, and unplug the system unit power cord from
the electrical outlet.
2. Attach the static-grounding wrist strap by following the instructions
on the package. Attach the sticky end of the wrist strap to bare metal
on the back panel of the system unit.
3. Turn the computer around so its back is facing you. On the right edge
of the computer, there are two T-15 Torx thumbscrews as shown in
Figure 5-2. Remove the two T-15 Torx thumbscrews.