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| Troubleshooting |
| Symptom Charts/System - 2 | |
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| Symptom Charts |
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| System | ||
System | 1 | Verify that system software is version 7.5.3 or later. | |||
intermittently | 2 | Verify that software is | |||
crashes or hangs | 3 | Verify that software is | |||
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| 4 | developer). | |
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| Clear parameter RAM. Hold down | ||
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| 5 | during startup, but before “Welcome to Macintosh” appears. | |
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| Disconnect all external devices attached (except monitor) | ||
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| 6 | and restart. | |
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| Replace DIMMs. | ||
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| 7 | Replace logic board. Retain customer’s DIMMs. | |
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| 8 | Replace power supply. | |
