Service Manual

Safety Instructions 133
Boot Sequence
This feature allows you to change the boot sequence for devices.
Option Settings
• Diskette Drive — The computer attempts to boot from a floppy drive (if
installed). If the floppy disk in the drive is not bootable, if no floppy disk is
in the drive, or if there is no floppy drive installed in the computer, the
computer generates an error message.
•
Hard Drive — The computer attempts to boot from the primary hard
drive. If no operating system is on the drive, the computer generates an
error message.
•
CD Drive — The computer attempts to boot from the CD drive. If no CD
is in the drive, or if the CD has no operating system, the computer
generates an error message.
•
USB Flash Device — Insert the memory device into a USB port and
restart the computer. When
F12 = Boot Menu appears in the upper-
right corner of the screen, press <F12>. The BIOS detects the device and
adds the USB flash option to the boot menu.
NOTE: To boot to a USB device, the device must be bootable. To make sure that
your device is bootable, check the device documentation.
Changing Boot Sequence for the Current Boot
You can use this feature, for example, to tell the computer to boot from the
CD drive so that you can run the Dell Diagnostics on the Dell Drivers and
Utilities disc, but you want the computer to boot from the hard drive when
the diagnostic tests are complete. You can also use this feature to restart your
computer to a USB device such as a floppy drive, memory key, or CD-RW
drive.
1
If you are booting to a USB device, connect the USB device to a USB
connector.
2 Turn on (or restart) your computer.
Load Optimal
Defaults
Resets CMOS defaults to factory install values.