Troubleshooting Without Diagnostics
Solving Minor ProblemsSolving 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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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 your 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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Poor performance is | Processor is hot. | 1. | Ensure airflow to the computer is |
experienced. |
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| not blocked. Leave a |
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| sides of the computer and |
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| monitor to permit required |
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| airflow. |
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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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Service Reference Guide, dx2200 MT |