Solving Front Panel Component Problems - HP dx7500 - Microtower PC Service & Reference Manual

Table C-15 Solving USB Flash Drive Problems (continued)
USB flash drive not found (identified).
Cause
The device is attached to a USB port that has been disabled
in Computer Setup.
The device was not properly seated before power-up.
System will not boot from USB flash drive.
Cause
Boot order is not correct.
The image on the device is not bootable.
The computer boots to DOS after making a bootable flash drive.
Cause
Flash drive is bootable.

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-16 Solving Front Panel Component Problems
A USB device, 1394 device, headphone, or microphone is not recognized by the computer.
Cause
Device is not properly connected.
The device does not have power.
The correct device driver is not installed.
The cable from the device to the computer does not work.
176 Appendix C Troubleshooting Without Diagnostics
Solution
Run the Computer Setup utility and ensure USB Ports are
Enabled in the Advanced menu.
Ensure the device is fully inserted into the USB port before
applying power to the system
Solution
1. Run the Computer Setup utility and change the
removable media boot priority in Boot > Boot Device
Priority > Floppy Group Boot Priority.
2. Run the Computer Setup utility and change boot group
sequence in Boot > Boot Device Priority.
Follow the procedures described in the "Replicating the Setup"
section of the Service Reference Guide.
Solution
Install the flash drive only after the operating system boots.
Solution
1. Turn off the computer.
2. Reconnect the device to the front of the computer and
restart the computer.
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.
1. Install the correct driver for the device.
2. You might need to reboot the computer.
1. If possible, replace the cable.
2. Restart the computer.