Solving General Problems - HP Compaq 6000 Pro SFF Troubleshooting Manual

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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!
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 2-1
Solving General Problems
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.
Computer date and time display is incorrect.
Cause
RTC (real-time clock) battery may need to be replaced.
NOTE:
Connecting the computer to a live AC outlet prolongs
the life of the RTC battery.
Cursor will not move using the arrow keys on the keypad.
Cause
The
Num Lock
ENWW
When the computer is plugged into an AC power source, voltage is always applied to the
key may be on.
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.
Solution
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 for instructions on installing a new
battery, or contact an authorized dealer or reseller for RTC
battery replacement.
Solution
Press the
Num Lock
key. The Num Lock light should not be on
if you want to use the
arrow
disabled (or enabled) in Computer Setup.
Solving General Problems
keys. The
Num Lock
key can be
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