HP EliteDesk 800 G6 Maintenance and Service Guide - Page 67

Cannot remove computer cover or access panel, Poor performance

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Cause System volume might be set low or muted. Solution 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 off. 2. Check the Computer Setup settings to be sure that the internal system speaker is not muted. This setting does not affect 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 Smart Cover Lock, featured on some computers, is locked. 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. Poor performance Use this information to troubleshoot the computer. Cause Solution Processor is too hot. 1. Be sure that airflow to the computer is not blocked. Leave a 10.2 cm (4 inch) clearance on all vented sides of the computer to permit the required airflow. 2. Be sure that fans are connected and working properly (some fans only operate when needed). 3. Be sure that the processor heat sink is installed properly. Hard drive is full. Transfer data from the hard drive to create more space on the hard drive. Low on memory. Add more memory. Hard drive fragmented. Defragment hard drive. Program previously accessed did not release reserved memory Restart the computer. back to the system. Virus resident on the hard drive. Run virus protection program. Too many applications running. 1. Close unnecessary applications to free memory. 2. Add more memory. Solving general problems 57

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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
off.
2.
Check the Computer Setup settings to be sure that the
internal system speaker is not muted. This setting does not
affect
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.
Cause
Solution
Processor is too hot.
1.
Be sure that
airflow
to the computer is not blocked. Leave a
10.2 cm (4 inch) clearance on all vented sides of the
computer to permit the required
airflow.
2.
Be sure that fans are connected and working properly (some
fans only operate when needed).
3.
Be sure that the processor heat sink is installed properly.
Hard drive is full.
Transfer data from the hard drive to create more space on the
hard drive.
Low on memory.
Add more memory.
Hard drive fragmented.
Defragment hard drive.
Program previously accessed did not release reserved memory
back to the system.
Restart the computer.
Virus resident on the hard drive.
Run virus protection program.
Too many applications running.
1.
Close unnecessary applications to free memory.
2.
Add more memory.
Solving general problems
57