IBM 628816U - PC 300 GL, User Manual

Page: 103 / 174

POST error messages appear when POST finds problems with or changes to
the hardware during startup. POST error messages are 3-, 4-, 5-, 8-, or
12-character alphanumeric messages and include brief explanations (except
I999XXXX errors).
Troubleshooting MAP
Use this procedure as a starting point for problem isolation.
001
– Turn off the computer and wait a few seconds.
– Turn on the computer, monitor, and any other attached devices.
– Wait the normal amount of time for the first screen of your application or
the operating system to display.
Is the first screen of your application or operating system displayed?
Yes No
002
Continue at Step 004.
003
You might have an I/O device that is failing, or an intermittent problem
with your computer.
Go to “IBM Enhanced Diagnostics program” on page 108 and run the
Enhanced Diagnostics.
004
You have an unreadable display, an error message, or the computer is
sounding a series of beeps.
Is an error message displayed?
Yes No
005
Do you hear a series of beeps?
Yes No
006
– Make sure that the monitor is turned on and the Brightness
and Contrast controls are adjusted correctly.
– Make sure that the monitor signal cable is securely connected
to the monitor and to the monitor connector on the graphics
adapter. To find the monitor connector on your computer, see
Chapter 7. Troubleshooting
89