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| Troubleshooting |
| Symptom Charts/System (Continued) - 8 | |
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| System (Continued) |
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System | 1 | Verify that system software is version 7.1.2 or later | |||
intermittently | 2 | (9150) or 7.5 or later (9150/120). | |||
crashes or hangs | Verify SIMMs are noncomposite and installed in like pairs | ||||
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| 3 | (same size/speed). | |
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| Verify software is | ||
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| 4 | Verify a terminator or video card is installed in the PDS slot. | |
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| 5 | Clear parameter RAM. Hold down <Command> <Option> <P> | |
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| <R> during startup but before “Welcome to Macintosh” | |
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| 6 | appears. | |
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| Replace DRAM SIMMs. Refer to Memory manual. | ||
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| 7 | Reseat ROM, RAM, and cache SIMMs, and reseat terminator | |
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| 8 | card. | |
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| Replace cache SIMM or DIMM. | ||
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| 9 | Replace logic board. Retain SIMMs. | |
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| 10 | Replace power supply. | |
