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Troubleshooting Symptom Charts/System - 3
System
System
intermittently
crashes or hangs
1 Verify that system software is version 7.1.2 or later
(6100/60 & 6150) or 7.5 or later (6100/66 &
6150/66).
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 Clear parameter RAM. Hold down <Command> <Option> <P>
<R> during startup but before “Welcome to Macintosh”
appears.
6 Replace cache SIMM (if installed).
7 Replace DRAM SIMMs. Refer to Memory manual.
8 Replace logic board. Retain SIMMs.
9 Replace power supply.