Compaq 12XL510 Models XL300, XL300A, and XL300B - Maintenance & Service Gu - Page 41

Power-On Self-Test (POST), System Board Failure, Probable Cause, Recommended Action - presario memory

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Presario 1200XL Series Model XL300, XL300A, and XL300B 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 clear the logo and display the POST messages as they occur. If the Notebook does not beep, POST has successfully completed its test and has detected no errors. POST then reboots from the hard drive or from a bootable diskette if one is installed in the diskette drive. However, if POST detects errors, these are indicated by messages displayed on the screen and/or audible messages. A list of the POST error codes and what they mean is shown in the table below. Note: If the system is not functioning well enough to run POST, or if the display is not functioning well enough to show POST error messages, refer to the Troubleshooting Tables. Power-On Self-Test Messages 102-System Board Failure Probable Cause Recommended Action DMA, timers, etc. Replace the system board. 162-System Options Not Set Probable Cause Recommended Action Incorrect configuration. Run Computer Setup. CMOS reflects an invalid configuration setting. RAM failure. Run Computer Setup. 1. Replace the memory modules. 2. Replace the system board. Memory test data error. 1. Replace the memory modules. 2. Replace the system board. XX000YZZ RAM failure. Replace the system board. 4 TROUBLESHOOTING PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES

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4 T
ROUBLESHOOTING
P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1200XL S
ERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
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 clear the logo and display the POST messages as they occur.
If the Notebook does not beep, POST has successfully completed its test and has detected
no errors. POST then reboots from the hard drive or from a bootable diskette if one is
installed in the diskette drive.
However, if POST detects errors, these are indicated by messages displayed on the screen
and/or audible messages. A list of the POST error codes and what they mean is shown in
the table below.
Note:
If the system is not functioning well enough to run POST, or if the display is not
functioning well enough to show POST error messages, refer to the
Troubleshooting Tables
.
Power-On Self-Test Messages
102-System Board Failure
Probable Cause
Recommended Action
DMA, timers, etc.
Replace the system board.
162-System Options Not Set
Probable Cause
Recommended Action
Incorrect configuration.
Run Computer Setup.
CMOS reflects an invalid
configuration setting.
Run Computer 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.
XX000YZZ RAM failure.
Replace the system board.