HP Dc7900 Service Reference Guide: HP Compaq dc7900 Business PC - Page 280
Solving USB Flash Drive Problems
UPC - 884962028483
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USDT computer boots too slow after removing a CD-ROM or DVD drive. Cause Solution The system is searching for the drive during boot because the Disconnect the drive cable from the system board. drive cable is still attached to the system board. Solving USB Flash Drive Problems If you encounter USB flash drive problems, common causes and solutions are listed in the following table. Table D-16 Solving USB Flash Drive Problems USB flash drive is not seen as a drive letter in Windows. Cause Solution The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows. USB flash drive not found (identified). Cause Solution The device is attached to a USB port that has been hidden in Run the Computer Setup utility and ensure that "Device Computer Setup. available" is selected for "Front USB Ports" and "Rear USB Ports" under Security > Device Security. The device was not properly seated before power-up. Ensure the device is fully inserted into the USB port before applying power to the system 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 image on the device is not bootable. 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. Follow the procedures described in the "ROM Flash: Replicating the Setup: Creating a Bootable Device: Supported USB Flash Media Device" section of the Service Reference Guide. The computer boots to DOS after making a bootable flash drive. Cause Solution Flash drive is bootable. Install the flash drive only after the operating system boots. 268 Appendix D Troubleshooting Without Diagnostics