Owners Manual
Page 131
... the computer. The BIOS detects the device and adds the USB flash option to boot from the network. The computer attempts to boot from the floppy disk drive. The computer attempts to boot from the Drivers and Utilities disc. Boot Sequence This feature allows you are booting from the primary hard drive... Current Boot You can use this feature to change the boot sequence for example, to boot from the CD/DVD/CD-RW drive to run Dell Diagnostics from the CD/DVD/CD-RW drive.
... the computer. The BIOS detects the device and adds the USB flash option to boot from the network. The computer attempts to boot from the floppy disk drive. The computer attempts to boot from the Drivers and Utilities disc. Boot Sequence This feature allows you are booting from the primary hard drive... Current Boot You can use this feature to change the boot sequence for example, to boot from the CD/DVD/CD-RW drive to run Dell Diagnostics from the CD/DVD/CD-RW drive.