
If you receive one of the error messages listed below, follow the recommended action.
Table 
Warning Messages
| Message | Description | Recommended Action | |
| CMOS checksum | CMOS RAM | Run Computer Setup | |
| invalid, run SCU | information has | (Section 2.5) to reinitialize | |
| 
 | been corrupted. | 
 | |
| 
 | 
 | 
 | |
| CMOS failure, run | CMOS RAM has | Run Computer Setup | |
| SCU | lost power. | (Section 2.5) to reinitialize | |
| 
 | 
 | ||
| 
 | 
 | 
 | |
| Diskette controller | The diskette | If there is no diskette drive | |
| error | drive controller | in the system, run Computer | |
| 
 | failed to respond | Setup (Section 2.5) to | |
| 
 | to the recalibrate | properly configure the | |
| 
 | command. | ||
| 
 | 
 | diskette drive present. If the | |
| 
 | 
 | problem persists, or if a | |
| 
 | 
 | diskette drive is present, | |
| 
 | 
 | complete these steps until | |
| 
 | 
 | the problems are solved: | |
| 
 | 
 | 1. | Check diskette drive | 
| 
 | 
 | 
 | connections. | 
| 
 | 
 | 2. | Replace diskette drive. | 
| 
 | 
 | 3. Replace system board. | |
| 
 | 
 | 
 | |
| Diskette track 0 failed | The diskette | Try another diskette. If the | |
| 
 | drive cannot | problem persists, you may | |
| 
 | read track 0 of | need to replace the diskette | |
| 
 | the diskette in | drive. | |
| 
 | the drive. | 
 | 
 | 
| 
 | 
 | 
 | |
| Hard disk controller | The hard drive | Check the drive parameters. | |
| error | controller failed | Turn off the system and | |
| 
 | to respond to the | check all related | |
| 
 | reset command. | connections. | |
| 
 | 
 | 
 | |
| Keyboard controller | The keyboard | Replace the system board. | |
| failure | failed the self- | 
 | 
 | 
| 
 | test command. | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
Continued
Troubleshooting 
