Solving Usb Flash Drive Problems; Solving Front Panel Component Problems - HP ProDesk 400 G2.5 Maintenance And Service Manual

Solving USB flash drive problems

If you encounter USB flash drive problems, common causes and solutions are listed in the following table.
USB flash drive is not seen as a drive letter in Windows.
Cause
The drive letter after the last physical drive is not available.
USB flash drive not found (identified).
Cause
The device is attached to a USB port that has been hidden 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.
Removable Media Boot is disabled in the Computer Setup utility.
The computer boots to DOS after making a bootable flash drive.
Cause
Flash drive is bootable.
Flash drive is defective.

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.
A USB device, headphone, or microphone is not recognized by the computer.
Cause
Device is not properly connected.
The device does not have power.
92 Chapter 6 Troubleshooting without diagnostics
Solution
Change the default drive letter for the flash drive in Windows.
Solution
Run the Computer Setup utility and enable USB ports in
Security > USB Security.
Ensure the device is fully inserted into the USB port before
applying power to the system
Solution
Run the Computer Setup utility and change boot sequence in
Storage > Boot Order.
Run the Computer Setup utility and enable booting to removable
media in Storage > Storage Options. Ensure USB is enabled in
Storage > Boot Order.
Solution
Install the flash drive only after the operating system boots.
Try a different flash drive.
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.