Compaq Presario 1800 Presario Select 1800 Series Maintenance and Service Guide - Page 25

Power-On Self Test POST - ram

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Maintenance & Service Guide Presario 1800 Series Models: 1825 and 1800T | Home 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 these directions: Turn off the computer, then turn on the computer. As soon as the Compaq logo appears press the ESC key to clear the logo and display the POST messages as they occur. If POST does not detect any errors, the computer will not beep. This indicates successful completion of the 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 POST system is not functioning well enough to run POST, or error messages, refer to the Troubleshooting tables. if the display is not functioning well enough to show 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 Power-On Self-Test Messages 102-System Board Failure Recommended Action Replace the system board. 162-System Options Not Set 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. Probable Cause XX000YZZ 201-Memory Error Recommended Action 1. Replace the memory modules. Probable Cause Keyboard failure 2 Replace the system board. 301-Keyboard Error Recommended Action 1. Ensure the keys are not depressed during POST. 2. Reconnect the keyboard with the computer off. Probable Cause Keyboard or system board error 3. Replace the keyboard. 304-Keyboard or System Unit Error Recommended Action 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. Probable Cause Mismatch in drive type Probable Cause Disk 0 failed to respond 3. Replace the system board. 605-Diskette Drive Error Recommended Action Run Computer Setup. 1780-Primary Hard Drive 0 Failure Recommended Action 1. Run Computer Checkup (TEST). Hard drive format error 2. Replace the hard drive. 1. Run Computer Checkup (TEST). Probable Cause Hard drive controller failure 2. Replace the hard drive. 1782-Hard Drive Controller Recommended Action 1. Run Computer Setup. 2. Replace the hard drive. Top of Page Return to Troubleshooting

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Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
|
Home 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 these directions:
Turn off the computer, then turn on the computer. As soon as the Compaq logo appears press the
ESC
key to clear the logo
and display the POST messages as they occur.
If POST does not detect any errors, the computer will not beep. This indicates successful completion of the 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
1. Replace the memory modules.
2
Replace the system board.
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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