Maintenance & Service Guide
Presario 1660 Model
MSG Index 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, turn off the computer, then turn it back on.
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 the following tables for a list of POST codes and their relevant descriptions. If there is more than one recommended action, only try the later actions in the list if the first action recommended does not solve the problem.
If the system is not functioning well enough to run POST, NOTE: or if the display is not functioning well enough to show
POST error messages, refer to the Troubleshooting tables.
102System board failure
162System options not set
XX000YZZ Memory Error 201
301Keyboard Error
304Keyboard or System Unit Error
601Diskette Controller Error
605Diskette Drive Error
1780 | Primary Hard Drive 0 Failure |
1782 | Hard Drive Controller |
Power-On Self-Test Messages
Probable Cause | Recommended Action |
DMA, timers, etc. | Replace the system board. |
Probable Cause | Recommended Action |
Configuration incorrect | Run Computer Setup. |
CMOS reflects that an | Run Computer Setup. |
invalid |
|
configuration has been |
|
set. |
|
XX000YZZ
Probable cause | Recommended action |
RAM failure | 1. Replace the memory |
modules.
2.Replace the system board.
Memory test data 1. Replace the memory
errormodules.
2.Replace the system board.
XX000YZZ RAM Replace the system board.
failure
| |
Probable | Recommended Action |
Cause |
|
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 | Recommended Action | ||
Cause | |||
|
| ||
Keyboard or | 1. | Replace the keyboard. | |
system board | 2. | Replace the TouchPad or mouse. | |
error | 3. | Replace the system board. | |
601-Diskette Controller Error
Probable Cause
Mismatch in drive type or failure in the diskette controller
Recommended Action
1.Run Computer Checkup (TEST).
2.Check and/or replace cables.
3.Replace the system board.
Probable Cause | Recommended | |
Action | ||
| ||
Mismatch in drive | Run Computer | |
type | Setup. |
1780-Primary Hard Drive 0 Failure
Probable Cause | Recommended Action | |
Disk 0 failed to | 1. | Run Computer Checkup |
respond | (TEST). | |
| 2. | Replace the hard drive. |
Hard drive format 1. Run Computer Checkup
error(TEST).
2.Replace the hard drive.
1782-Hard Drive Controller
Probable Cause
Hard drive controller failure
Recommended Action
1.Run Computer Setup.
2.Replace the hard drive.
