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| Troubleshooting Without Diagnostics | |
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| Solving Minor Problems (Continued) |
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| Problem | Cause | Possible Solution | ||
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| Poor performance is | Program previously | Restart the computer. | ||
| experienced. | accessed did not release |
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| (continued) | reserved memory back to |
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| the system |
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| Virus resident of the hard | Run virus protection program. | ||
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| drive. |
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| Too many applications | 1. | Close unnecessary applications. | |
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| running. | 2. | Add more memory. | |
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| Some software | 1. | Lower the display resolution for | |
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| applications, especially |
| the current application or consult | |
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| games, are stressful on the |
| the documentation that came with | |
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| graphics subsystem. |
| the application for suggestions on | |
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| how to improve performance by | |
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| adjusting parameters in the | |
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| application. | |
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| 2. | Add more memory. | |
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| 3. | Upgrade the graphics solution. | |
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| Cause unknown. | Restart the computer. | ||
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| Computer powered off | Processor thermal | 1. | Ensure computer air vents are not | |
| automatically and the | protection activated: |
| blocked and the cooling fan is | |
| Power LED flashes Red | A fan may be blocked or |
| running. | |
| two times, once every | not turning. | 2. | Open hood, press power button, | |
| second, followed by a | OR |
| and see if the processor fan | |
| two second pause, and |
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| The heatsink is not |
| spins. If not spinning, make sure | ||
| the computer beeps two |
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| the fan's cable is plugged onto | |||
| times. Beeps continue | properly attached to the |
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| the system board header. Ensure | |||
| for five iterations after | processor. |
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| the fan is fully/properly seated or | |||
| which the LED flashes |
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| installed. | ||
| will continue until the |
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| 3. | Replace the processor | ||
| problem is resolved. |
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| 4. | Reseat processor | |
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| assembly and verify that the fan | |
is properly connected to the system board.
Service Reference Guide, dc7600 |