Maintenance
& Service Guide
Presario 1900 Series
Models: 1905, 1906, 1910, 1915, 1919, 1920, 1922, and 1925
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Page | Notice | Preface | Product
Description | Troubleshooting
Illustrated Parts
Catalog | Removal & Replacement
Procedures | Specifications
Pin Assignments | Battery
Pack Operations
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.
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 |
Configuration incorrect |
Run Computer Setup. |
CMOS reflects that an
invalid
configuration has been set. |
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. |
XX000YZZ 201-Memory Error |
Probable Cause |
Recommended Action |
301-Keyboard Error |
Probable Cause |
Recommended Action |
Keyboard
failure |
1. Ensure the keys are not
depressed during POST. 2. Reconnect the keyboard with the
computer off.
3. Replace the keyboard. |
304-Keyboard or System Unit Error |
Probable Cause |
Recommended Action |
Keyboard or
system board error |
1. Replace the keyboard. 2. Replace the TouchPad or mouse.
3. Replace the system board. |
601-Diskette Controller Error |
Probable Cause |
Recommended Action |
Mismatch in
drive type or failure in the diskette controller |
1. Run Computer Checkup
(TEST). 2. Check and/or replace cables.
3. Replace the system board. |
605-Diskette Drive Error |
Probable Cause |
Recommended
Action |
Mismatch in
drive type |
Run Computer Setup. |
1780-Primary Hard Drive 0 Failure |
Probable Cause |
Recommended
Action |
Disk 0 failed
to respond |
1. Run Computer Checkup
(TEST). 2. Replace the hard drive. |
Hard drive
format error |
1. Run Computer Checkup
(TEST). 2. Replace the hard drive. |
1782-Hard Drive Controller |
Probable Cause |
Recommended
Action |
Hard drive
controller failure |
1. Run Computer Setup. 2. Replace the hard drive. |
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