Elitegroup 223 - Manual (Page 72)

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To check the power cables, and connections:
1.
If you have been using battery power, connect the Notebook to
an external power source and make sure that the battery has a
charge.
2. If you are using the Notebook with the AC adapter, check the
power outlet, the power cord, and any power switches that may
affect your computer.
¾ 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.
¾ If the outlet is controlled by a wall switch, make sure
that the switch is on.
¾ If the outlet is controlled by a dimmer switch, use a
different outlet.
¾ If your computer is plugged into a power strip with an
On/Off switch, make sure the switch is on.
3. 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.
Do not substitute cables for different devices (other than
the manufacturer recommended cables) even if they look
exactly alike. The wiring inside the cable may be different.
4. 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.
The Power-On Self Test
The Power-On Self Test (POST) runs every time you turn on or reset
the Notebook. The POST checks memory, the main system board, the
display, the keyboard, the disk drives, and other installed options.
A few seconds after you turn on your computer, a copyright message
appears on your display screen. A memory test message appears next;
as the test continues, memory size increases until all installed memory
is tested.