Apple WS 7250/120 Manuale Utente

 

 Troubleshooting

Symptom Charts/System - 8

 

System 

intermittently 

crashes or hangs

1 Verify system software is version 7.5.2 or later (Power 

Macintosh 7200/75 or 7200/90) or 7.5.3 or later (Power 

Macintosh 7200/120 or WS 7250/120).

2 Verify DIMMs are noncomposite.

3 Verify software is known-good. Do a clean install of the 

system software.

4 Verify software is Power Macintosh 7200/WS 7250 

compatible (contact developer). Also, try booting with 

extensions off to determine if there are system init problems.

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

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

appears.

6 Remove all DRAM DIMMs and try replacing them one at a 

time to test. Replace any bad DIMMs.

7 Replace logic board. Retain DIMMs.