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Chapter 4
4-2 Checking the Power, Cables , and Connections
Start by performing a careful visual inspection of the exterior of the computer.
If no lights are displayed, make sure that your computer and its peripherals
are getting power and communicating with each other properly.
To check the power, cables, and connections:
1. Check the power outlet, the power cord, and any power switches that may
affect your computer:
- Check the wall outlet or power strip with an item that you know is functioning
properly. A lamp or radio is a convenient item for checking the power. You
may also need to check the fuses and breakers in your electric box.
- If the outlet is controlled by a wall switch, make sure that the switch is
on.
- If the outlet is controlled by a dimmer switch , use a different outlet.
- If your computer is plugged into a power strip with an on/off switch, make
sure the switch is on.
2. With the computer's power switched off, check all cable connections, if the
computer is connected to any peripheral devices, look for loose or
disconnected cables. If the computer is too close to a wall, a cable
connection may be loose or the cables may be crimped.
Note: Do not substitute cables for different type of devices even if they
look exactly alike. The wiring inside the cable may be different.
3. When you are certain that you have power available and all connections
are good, turn the computer on again. If the computer still does not start,
you may have a hardware problem.
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