"Compaq.com - Compaq Presario Series Maintenance and Service Guide - Models: 1246, 1277, 1278, and 1279
Maintenance & Service Guide
Presario Series
Models: 1246, 1247, 1277, 1278, and 1279
| Home Page | Notice | Preface | Product Description | Troubleshooting
Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications
Pin Assignments | Battery Pack Operations
Troubleshooting
Power-On Self Test (POST)
Running POST
To run POST, turn off the computer. Then turn on the computer.
If POST does not detect any errors, the computer will not beep. This indicates successful
completion of POST test. POST has run successfully and boots from the hard drive (or
from a bootable diskette if one is installed in the diskette drive).
If POST detects errors, the errors are indicated by screen and/or audible messages. Refer
to "Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their
relevant descriptions.
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.
NOTE:
The following routines are sorted by their test point numbers assigned in the
BIOS code. Their actual orders, as executed during POST, can be quite
different.
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