Compaq Presario 18XL Maintenance & Service Guide Presario 1800/1800T Serie - Page 40

Power-On Self-Test (POST), POST Error Messages

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Presario 1800/1800T Series Models: XL280, XL380, XL381, and XL390 Power-On Self-Test (POST) To run POST, complete these steps: Turn off the Notebook, then turn it on again. As soon as the Compaq logo appears, press the ESC key to display the POST messages as they occur. Remember any POST error codes that are displayed. If the Notebook does not beep, POST has successfully completed its test and detected no errors. The Notebook will automatically restart. Note: If a bootable diskette is installed in the diskette drive, the system will boot from the diskette instead of the hard drive. However, if POST detects errors, the Notebook will beep and/or display a text message. Note: If the Notebook is not functioning well enough to complete POST, or the display is unable to show POST error messages, refer to the section Solving Minor Problems later in this chapter. POST Error Messages A list of the POST error codes and their descriptions is shown in the tables below. 102-System Board Failure Probable Cause Recommended Action DMA, timers, and so on Replace the system board. 162-System Options Not Set Probable Cause Recommended Action Incorrect configuration CMOS reflects an invalid configuration setting. RAM failure Memory test data error Run Setup. Run Setup. 1. Replace the memory modules. 2. Replace the system board. 1. Replace the memory modules. 2. Replace the system board. 4 TROUBLESHOOTING PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1800 SERIES

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4 T
ROUBLESHOOTING
P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1800 S
ERIES
Presario 1800/1800T Series
Models: XL280, XL380, XL381,
and XL390
Power-On Self-Test (POST)
To run POST, complete these steps:
Turn off the Notebook, then turn it on again. As soon as the Compaq logo appears, press
the
ESC
key to display the POST messages as they occur. Remember any POST error codes
that are displayed.
If the Notebook does not beep, POST has successfully completed its test and detected no
errors. The Notebook will automatically restart.
Note:
If a bootable diskette is installed in the diskette drive, the system will boot from
the diskette instead of the hard drive.
However, if POST detects errors, the Notebook will beep and/or display a text message.
Note:
If the Notebook is not functioning well enough to complete POST, or the display is
unable to show POST error messages, refer to the section
Solving Minor Problems
later
in this chapter.
POST Error Messages
A list of the POST error codes and their descriptions is shown in the tables below.
102-System Board Failure
Probable Cause
Recommended Action
DMA, timers, and so on
Replace the system board
.
162°System Options Not Set
Probable Cause
Recommended Action
Incorrect configuration
Run Setup.
CMOS reflects an invalid
configuration setting.
Run Setup.
RAM failure
1.
Replace the memory
modules
.
2.
Replace the system board
.
Memory test data error
1.
Replace the memory
modules
.
2.
Replace the system board
.