Troubleshooting Without Diagnostics
Solving Minor Problems
Solving Minor Problems| Problem | Cause | Possible Solution |
Computer appears locked up and will not turn off when the power button is pressed.
Software control of the power switch is not functional.
1.Press and hold the power button for at least four seconds until the computer turns off.
2.Disconnect electrical plug from outlet.
Computer will not | Computer is in | Press the power button to resume from |
respond to USB | standby mode. | standby mode. |
keyboard or mouse. |
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| System has locked up. | Restart computer. |
ÄCAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose any unsaved data.
Computer date and | RTC | 1. | Reset the date and time under |
time display is incorrect. | battery may need to be |
| Control Panel. |
| replaced. | 2. | Replace the RTC battery. |
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Computer appears to | Network driver is loaded | Establish a network connection, or | |
pause periodically. | and no network | use Computer Setup or Microsoft | |
| connection is established. | Windows Device Manager to disable | |
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| the network controller. | |
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Cursor will not move | The Num Lock key | Press the Num Lock key. The Num | |
using the arrow keys on | may be on. | Lock key can be disabled (or | |
the keypad. |
| enabled) in Computer Setup. | |
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Cannot remove | Smart Cover Lock, | 1. | Unlock the Smart Cover Lock |
computer cover or | featured on some |
| using Computer Setup. |
access panel. | computers, is locked. | 2. | Use the Smart Cover FailSafe Key |
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| in case of forgotten password, |
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| power loss, or computer |
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| malfunction. |
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Poor performance is | Processor is hot. | 1. | Ensure airflow to the computer is |
experienced. |
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| not blocked. |
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| 2. | Ensure the fans are connected |
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| and working properly (some fans |
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| only operate when needed). |
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| 3. | Ensure the processor heatsink is |
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| installed properly. |
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| Hard drive is full. | Transfer data from the hard drive to | |
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| create more space on the hard drive. | |
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| Low on memory. | Add more memory. | |
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| Hard drive fragmented. | Defragment hard drive. | |
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Service Reference Guide, dc7600 |