Dell Dimension XPS 50 Reference Manual page 156

B-22 Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide
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device designation The computer system attempts to boot the operating sys-
tem from the first device listed. To select a new boot device,
reorder the list: Use the up- or down-arrow key to highlight a
device, and press the plus (+) or minus (–) key to move the
item up or down the list. If no operating system is found on
the boot device, the system attempts to boot from each suc-
cessive device until an operating system is found.
Bootable Add-In Same as preceding item.
Card
NOTE: The Glossary in the system Help defines abbreviations and acronyms.