Apple 4400/200 PC Manuale Utente

 

 Troubleshooting

Symptom Charts/System - 2

 

Symptom Charts

 

System 

intermittently 

crashes or hangs

1 Verify that system software is version 7.5.3 or later.

2 Verify that software is known-good.

3 Verify that software is PowerPC-compatible (contact 

developer).

4 Clear parameter RAM. Hold down Command-Option-P-R 

during startup, but before “Welcome to Macintosh” appears.

5 Disconnect all external devices attached (except monitor) 

and restart. 

6 Replace DIMMs. 

7 Replace logic board. Retain customer’s DIMMs.

8 Replace power supply.