Troubleshooting; Computer Does Not Start - HP 450 NG User Manual

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Troubleshooting

If you have problems using any peripheral devices such as a monitor or a printer with your computer, for more
extensive troubleshooting refer to the documentation provided by the product manufacturer. The following
tables present some issues you might encounter while installing, starting up, or using your computer and
suggest possible solutions.
For more information or for additional troubleshooting options, go to http://www.hp.com/support. Select
Find your product, and then follow the on-screen instructions.

Computer does not start

Symptom Possible solution
Error message: hard 1.
drive error
2.
3.
Computer will not turn Be sure that the cables connecting the computer to the AC outlet are plugged in properly. The green power supply light on
on or start the computer should be on. If it is not, try a different AC outlet. If you are still having trouble, contact support.
Be sure that the operating voltage of the AC outlet is appropriate for the electrical voltage of the computer.
Test the AC outlet by plugging a different electrical device into it.
If possible, remove any outlet filters and stabilizers, and then insert the power plug directly into the AC outlet.
Disconnect all peripheral devices. Press and hold the power button down for at least 15 seconds until the computer turns
off. Then press the power button again to turn on the computer.
If the monitor screen is blank, the monitor might not be properly connected. Connect the monitor to the computer, plug the
power cord into an AC outlet, and then turn the monitor on. See
Computer is not 1.
responding
2.
3.
If closing programs does not resolve the problem, restart the computer.
1.
2.
– or –
Restart the computer.
a. Press ctrl+alt+delete.
b. Select the Power icon, and then select Restart.
– or –
Press and hold the power button on the computer for 5 or more seconds to turn off the computer, and then press the
button to turn on the computer.
If Windows opens, immediately back up all important data to a backup hard drive.
Contact support (regardless of whether Windows started or not).
Press ctrl+alt+delete.
Select Task Manager.
Select any programs that are not responding, and then select End task.
Press ctrl+alt+delete.
Select the Power icon, and then select Restart.
Display (monitor) (select products only) on page
Computer does not start
22.
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