IBM Aptiva 2159, Manual

Page: 126 / 214

Introduction
This section explains the diagnostic aids that are available for
troubleshooting problems on the system.
Power-On Self Test
Each time you power-on the system, the power-on self test (POST) is
initiated. The POST takes up to 120 seconds to complete (with Rapid
Resume disabled or not installed), depending on the options installed.
The POST checks the following:
Ÿ
System board
Ÿ
Memory
Ÿ
VGA
Ÿ
Hard disk drive(s)
Ÿ
Diskette drive(s)
Ÿ
Keyboard
Ÿ
Mouse
Ÿ
Parallel port
Ÿ
Serial port(s)
Ÿ
CD-ROM drive
Ÿ
Sound adapter card
To start the POST, turn on the monitor and the system unit. The following
happens:
1. The POST Configuration icon, appears at the upper-right corner
of the monitor.
Pressing F1 at this time causes the Setup Utility menu to appear after
the POST has completed.
2. A count of the system memory appears at the upper-left corner of the
screen.
3. If an error is detected, an error code appears under the system memory
count.
Note: A memory error can appear without the memory count as:
XXXXXX XXXX 20X, where the first six Xs = memory address,
the next four Xs = data, and the 20X can be 201 or 203.
4. Successful completion of POST is attained when there are no errors
detected in the system.
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