The power-on self test – Elitegroup G731 User Manual
Page 79

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. 
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. Normally, the 
only test routine visible on the screen will be the memory test. 
Two classifications of malfunctions can be detected during the 
POST: 
• Error messages that indicate a failure with either the 
hardware, the software, or the Basic Input/Output System 
(BIOS). These critical malfunctions prevent the computer 
from operating at all or could cause incorrect and apparent 
results. An example of a critical error is microprocessor 
malfunction. 
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