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| Troubleshooting |
| Symptom Charts/System - 7 | |
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| shuts down | 1 | Make sure air vents are clear. Thermal protection |
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System | |||||
intermittently |
| circuitry may shut down system. After 30 to 40 minutes, | |||
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| 2 | system should be OK. | |
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| Make sure power cord is firmly plugged in. | ||
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| 3 | Verify fan is plugged in and working (if present). Replace if | |
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| necessary. (Note: Some 90 MHz versions of the Power | |
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| Macintosh 7200 logic board have a fan that plugs into the | |
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| 4 | logic board near the processor.) | |
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| Replace power cord. | ||
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| 5 | Check battery. | |
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| 6 | Reset Cuda chip. (Refer to The Cuda Chip in Basics for | |
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| 7 | instructions.) | |
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| Reset logic board. (Refer to Resetting the Logic Board in | ||
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| 8 | Basics for instructions.) | |
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| Replace power supply. | ||
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| 9 | Replace logic board. Retain customer's DIMMs. | |
