Apple 7100/66AV Manuale Utente

 

 Troubleshooting

Symptom Charts/System

 

 (Continued)

 

 - 6

 

System 

intermittently 

crashes or locks up

1 Verify that system software is version 7.1.2 or later.

2 Verify SIMMs are noncomposite and installed in like pairs 

(same size/speed).

3 Verify that software is known-good.

4 Verify that software is Power Macintosh compatible (contact 

developer).

5 Verify that a video card is installed in the PDS slot.

6 Clear parameter RAM. Hold down <Command> <Option> <P> 

<R> during startup but before "Welcome to Macintosh" 

appears.

7 Replace cache SIMM (if installed).

8 Replace DRAM SIMMs. Refer to Memory manual.

9 Replace power supply.

10 Replace logic board. Retain SIMMs.