Compaq 1255 Maintenance And Service Manual page 46

Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1272, 1273, 1274, and 1275
Memory test data error
XX000YZZ RAM failure
Probable Cause
RAM failure
Memory test data error
XXOOOYZZ Ram failure
Probable Cause
Keyboard failure
Probable Cause
Keyboard or system board error
Probable Cause
Mismatch in drive type or failure in the diskette
controller
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20check...01272,%201273,%201274,%20and%201275/power1.html (2 of 3)6/28/2004 9:23:05 AM
RAM failure
XX000YZZ 201-Memory Error
301-Keyboard Error
304-Keyboard or System Unit Error
601-Diskette Controller Error
1. Replace the memory modules.
2. Replace the system board.
1. Replace the memory modules.
2. Replace the system board.
Replace the system board.
Recommended Action
1. Replace the memory modules.
2. Replace the system board.
1. Replace the memory modules.
2. Replace the system board.
Replace the system board.
Recommended Action
1. Ensure that keys are not depressed during
POST.
2. Reconnect the keyboard with the computer
off.
3. Replace the keyboard.
Recommended Action
1. Replace the keyboard.
2. Replace the TouchPad or mouse.
3. Replace the system board.
Recommended Action
1. Run Computer Checkup (TEST).
2. Check and/or replace cables.
3. Replace the system board.