Cause Solution
RTC (real-time clock) battery may need to be replaced. 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 Removal and
Replacement section for instructions on installing a new battery, or
contact an authorized dealer or reseller for RTC battery
replacement. To access Control Panel in Windows 10, type
control panel in the taskbar search box, and then select
Control Panel.
There is no sound or sound volume is too low
Use this information to troubleshoot the computer.
Cause Solution
System volume might be set low or muted. 1. Check the front panel to see if an amber light indicates the
system has been muted. Tap the touch-sensitive button to
toggle the mute on and o.
2. Check the Computer Setup settings to be sure that the
internal system speaker is not muted. This setting does not
aect the external speakers.
3. Be sure that the external speakers are properly connected
and powered on and that the speakers' volume control is set
correctly.
4. Use the system volume control available in the operating
system to be sure that the speakers are not muted or to
increase the volume.
Cannot remove computer cover or access panel
Use this information to troubleshoot the computer.
Cause Solution
Smart Cover Lock, featured on some computers, is locked. 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.
Poor performance
Use this information to troubleshoot the computer.
52 Chapter 5 Troubleshooting without diagnostics ENWW
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