Troubleshooting Without Diagnostics
Solving General Problems
You may be able to easily resolve the general problems described in this section. If a problem persists and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation, contact an authorized dealer or reseller.
Solving General Problems
Problem | Cause | 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.
Press and hold the power button for at least four seconds until the computer turns off.
Computer will not | Computer is in | Press the power button to resume |
respond to USB | standby mode. | from 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 your unsaved data.
Computer date and | RTC |
time display is | battery may need to be |
incorrect. | replaced. |
| ✎ Connecting the |
| computer to a live |
| AC outlet prolongs |
| the life of the |
| RTC battery. |
First, reset the date and time under Control Panel (Computer Setup can also be used to update the RTC date and time). If the problem persists, replace the RTC battery. See the Hardware Reference Guide on the Documentation CD for instructions on installing a new battery, or contact an authorized dealer or reseller for RTC battery replacement.
Devices connected to | The Front Panel USB Port |
USB ports do not | may be disabled in |
operate. | Computer Setup. This |
| option controls the front |
| USB port and the two USB |
| ports on the back of the |
| computer under the NIC |
| connector. |
Enable the Front Panel USB Port in Computer Setup. If the problem persists, contact an authorized service center.
www.hp.com | Troubleshooting Guide |
