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IBM Personal Computer User Guide
Safety while working with hardware
Each time you open your computer, you must follow specific safety procedures to
ensure that you do not damage your computer. For your safety, and the safety of
your equipment, follow the steps for “Disconnecting your computer” on page xv
before you remove the cover of the system unit (if included with the model you
purchased).
Connecting your computer
To connect your computer:
1. Turn off the computer and any external devices (such as a monitor or printer)
that have their own power switches.
2. Attach a signal cable to each external device (such as a monitor or printer), and
then connect the other end of the signal cable to the computer.
3. Attach communication cables (such as modem cables or network cables) to the
computer. Then, attach the other ends of the cables to properly wired commu-
nication outlets.
4. Attach the power cords to the computer and any external devices (such as a
monitor or printer), and then connect the other ends of the power cords to prop-
erly grounded electrical outlets.
5. Turn on the computer and any attached devices that have their own power
switches.
To avoid shock hazard:
Danger!
• Do not connect or disconnect any cables or
perform installation, maintenance, or
reconfiguration of this product during an
electrical storm.
• The power cord must be connected to a
properly wired and grounded receptacle.
• Any equipment to which this product will be
attached must also be connected to properly
wired electrical outlets.
• Electrical current from power, telephone, and
communications cables is hazardous. To
avoid shock hazard, use the steps described
in this section to connect and disconnect
cables when installing, moving, or opening
the cover of this product.
• Never install telephone wiring during a
lightning storm
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