Latitude XT3 will not output to a display attached to the E/Port docking station, using either VGA or DVI ports until the operating system loads. This can inhibit PreBoot credential authentication if the LCD is closed. Solution: This issue is fixed with A06 BIOS release.
Root cause is due to the USB key was created with a floppy(00H) format that emulates HDD(80H). Upon boot the BIOS is unable to find 80H at MBR partition entry, so it shows that the partition table is invalid.
Keyword or Part Number
Accessories for Your Dell
Find products to upgrade or enhance your Dell computer.