Maintenance &
Service Guide
Presario 1600 Series Portable Computers
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Description | Troubleshooting | Illustrated
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Removal & Replacement Procedures | Specifications
| Connector Pin Assignments | Battery
Pack
Power On Self Test (POST)
Running POST
To run POST, complete the following steps:
Turn off the computer. Let stand for a 10 count, then turn the computer 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 "Power-On Self-Test (POST) Codes" 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. |
| 102 162 301 304 601 605 1780 1782 | |
| Probable Cause | Recommended Action |
| 102-System Board Failure | |
| DMA, timers, etc. | Replace the system board. |
| 162-System Options Not Set | |
| 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. |
| 301-Keyboard Error | |
| 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 | |
| Keyboard or system board error | 1. Replace the keyboard. 2. Replace the TouchPad or mouse. 3. Replace the system board. |
| 601-Diskette Controller Error | |
| 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 | |
| Mismatch in drive type | Run Computer Setup. |
| 1780-Primary Hard Drive 0 Failure | |
| 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 | |
| Hard drive controller failure | 1. Run Computer Setup. 2. Replace the hard drive. |
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