Specifications

4 T
ROUBLESHOOTING
P
RESARIO
N
OTEBOOK
M
AINTENANCE AND
S
ERVICE
G
UIDE
1400 S
ERIES
Presario 1400 Series
Models: XL240, XL241, XL242, XL244, XL245, XL246, XL247, XL250, XL340,
XL341, XL342, XL343, XL344, XL345, XL346, XL350, XL352, XL355, and XL356
Power-On Self-Test (POST)
To run POST, complete the following action:
Turn off the Notebook, then turn it on again. As soon as the Compaq logo appears, press ESC 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 detected no errors.
POST then re-boots from the hard drive, or from a bootable diskette if one is installed in the diskette
drive.
However, if POST detects errors, these errors are indicated by either displayed or audible messages
or both. Listed below are probable causes of and recommended actions to resolve the problems of
each POST error codes.
The following tables list error codes, a description of the error condition, and the action required to
resolve the error condition.
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 (pg 10
).
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.
XX000YZZ RAM failure. Replace the system board.