Opening the System Unit
Some hardware-configuration operations, like installing and removing
hard disk drives, can be done simply by opening the door on the front of
the unit; the disk drives are accessible through the open door. Other
operations require a bit more access to the interior of the computer, so
more panels will need to be removed. Such operations include the
installation and removal of the following devices (along with a list of
which panels will need to be removed):
• CD drive (front panel, top cover)
• DDS drive (front panel, top cover)
• Floppy drive (front panel, top cover)
• Memory (top cover, left side)
• I/O cards (top cover, right side)
Before opening the front, top, left, or right panels of the unit, make sure
that the system is powered down and unplugged. Note: do not remove
the rear thumbscrews before powering down the unit, or the system power
will be interrupted due to the interlock.
1. Power off the system (either by executing shutdown -h as root and
2. Unplug the power cord of the system unit and any peripheral devices
3. Attach the static-grounding wrist strap by following the instructions
CAUTION
Do not attempt to operate the computer with any of the front, top, or side
covers removed. In addition to maintaining FCC/EMI compliance, the
covers are needed to ensure proper airflow, and hence, sufficient system
cooling. Operating the unit without its covers in place may void the
warranty.
Chapter 2
Changing Your Computer's Hardware Configuration
then turning off the power, or by simply hitting the power switch,
which accomplishes the same thing), the monitor, and any peripheral
devices.
from AC wall outlets.
on the package. Attach the sticky end of the wrist strap to bare metal
on the back panel of the system unit.
Opening the System Unit
43
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