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Computer date and time display is incorrect.
Cause
Cursor will not move using the
Cause
The
Num Lock
key is turned on.
There is no sound or sound volume is too low.
Cause
System volume may be set low or muted.
Cannot remove computer cover or access panel.
Cause
Smart Cover Lock, featured on some computers, is locked.
Poor performance.
Cause
Processor is too hot.
arrow
keys on the keypad.
Solution
To access Control Panel in Windows 7, select Start, and then
select Control Panel.
To access Control Panel in Windows 8, from the Start screen, type
c, and then select Control Panel from the list of applications.
Solution
Press the
Num Lock
key. The Num Lock light must be off if you
want to use the
arrow
keys on the keypad. You can also disable or
enable the
Num Lock
key in Computer Setup at Advanced >
Device Options.
Solution
1.
Check the Computer Setup settings to make sure the
internal system speaker is not muted (this setting does not
affect the external speakers).
2.
Make sure the external speakers are properly connected
and powered on and that the speakers' volume control is set
correctly.
3.
Use the system volume control available in the operating
system to make sure the speakers are not muted or to
increase the volume.
Solution
Unlock the Smart Cover Lock using Computer Setup.
In case of forgotten password, power loss, or computer
malfunction, you must manually disable the Smart Cover lock . A
key to unlock the Smart Cover Lock is not available from HP. Keys
are typically available from a hardware store.
Solution
1.
Make sure airflow to the computer is not blocked. Leave a
10.2-cm (4-inch) clearance on all vented sides of the
computer and above the monitor to permit the required
airflow.
2.
Make sure fans are connected and working properly (some
fans only operate when needed).
Solving general problems
75
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