Power-On Self Test (Post); Running Post - Compaq 1650 Maintenance & Service Manual

"Compaq.com - Compaq Presario 1600 Series Maintenance and Service Guide - Models: 1650 and 1655
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Power-On Self Test (POST)

Running POST

To run POST, complete the following steps:
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.
If the system is not functioning well enough to run POST, or if the display is not functioning well enough to
NOTE:
show POST error messages, refer to the Troubleshooting tables.
Probable Cause
DMA, timers, etc.
Probable Cause
Configuration incorrect
CMOS reflects that an invalid
configuration has been set.
RAM failure
Memory test data error
XX000YZZ RAM failure
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20chec...01600%20SERIES%201650%20and%201655/power1.html (1 of 2)6/27/2004 2:52:44 AM
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Maintenance & Service Guide
Presario 1600 Series
Models: 1650 and 1655
| Notice | Preface | Product Description
| Removal & Replacement Procedures
Pin Assignments | Battery Pack Operations
Power-On Self-Test Messages
102-System Board Failure
162-System Options Not Set
United States
| Troubleshooting
| Specifications
Recommended Action
Replace the system board.
Recommended Action
Run Computer Setup.
Run Computer Setup.
1. Replace the memory modules.
2. Replace the system board.
1. Replace the memory modules.
2. Replace the system board.
Replace the system board.
June 27, 2004