Compaq 12XL300 Models XL300, XL300A, and XL300B - Maintenance & Service Gu - Page 41
Power-On Self-Test (POST), System Board Failure, Probable Cause, Recommended Action - ram
UPC - 720591463632
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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