Solving General Problems - HP Compaq Elite 8300 All-in-One Maintenance & Service Manual

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.
WARNING!
the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet and allow the internal system components to
cool before touching.
Table 8-1 Solving general problems
The computer will not wake from Standby or Hibernate when the screen is touched (on a touchscreen model).
Cause
A quick touch will not wake the computer.
Computer appears locked up and will not turn off when the power button is pressed.
Cause
Software control of the power switch is not functional.
Computer will not respond to USB keyboard or mouse.
Cause
Computer is in standby mode.
System has locked up.
110 Chapter 8 Troubleshooting Without Diagnostics
When the computer is plugged into an AC power source, voltage is always applied to
Solution
To wake touch panel equipped systems from Standby, swipe
the screen or touch the screen and hold for at least one
second.
To wake the systems from Hibernate, press the power button
and release.
Solution
1. Press and hold the power button for at least four
seconds until the computer turns off.
2. Disconnect the power cord from the electrical outlet.
Solution
To resume from standby mode, press the power button or
press any key.
CAUTION: 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.
Restart computer.