Solving Front Panel Component Problems

If you encounter problems with devices connected to the front panel, refer to the common causes and solutions listed in the following table.

Table C-16Solving Front Panel Component Problems

A USB device, headphone, or microphone is not recognized by the computer.

Cause

Solution

 

 

 

Device is not properly connected.

1.

Turn off the computer.

 

2.

Reconnect the device to the front of the computer and

 

 

restart the computer.

 

 

The device does not have power.

If the USB device requires AC power, be sure one end is

 

connected to the device and one end is connected to a live

 

outlet.

 

 

 

The correct device driver is not installed.

1.

Install the correct driver for the device.

 

2.

You might need to reboot the computer.

 

 

 

The cable from the device to the computer does not work.

1.

If possible, replace the cable.

 

2.

Restart the computer.

 

 

 

The device is not working.

1.

Replace the device.

 

2.

Restart the computer.

 

 

USB ports on the computer are disabled in Computer Setup.

Run the Computer Setup utility and ensure that Device

 

available is selected for appropriate USB ports under

 

Security > Device Security.

 

 

 

132 Appendix C Troubleshooting Without Diagnostics

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HP D8C84UT#ABA, D3K21UT#ABA, D3K19UT D3K19UT#ABA, Pro 4300 C9H67UT#ABA Table C-16Solving Front Panel Component Problems