Dell Alienware X51 R3 Alienware-x51-r3 Service Manual - Page 53

Boot sequence, Changing boot sequence for the current boot - desktop computer

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Save & Exit Save Changes and Reset Discard Changes and Reset Restore Defaults Allows you to exit system setup and save your changes. Allows you to exit system setup and load previous values for all system setup options. Allows you to load default values for all system setup options. Boot sequence This feature allows you to change the sequence of devices that your computer attempts to boot from. If the computer cannot boot from the device you select, it attempts to boot from the next bootable device. You can use this feature to change the: • Current Boot Sequence - change the boot sequence for the current boot, for example, to boot from the optical drive to run Alienware Diagnostics from the Drivers and Utilities disc or to reinstall your operating system using an external media. The previous boot sequence is restored at the next boot. • Future Boot Sequence - change the boot sequence for all future boots, for example, to boot from the primary hard drive. Changing boot sequence for the current boot 1 If you are booting from a USB device, connect the USB device to a USB port. 2 Turn on (or restart) your computer. 3 When F2 Setup, F12 Boot Options appear in the lower-right corner of the screen, press F12. NOTE: If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop. Then, shut down your computer and try again. The Boot Options appears, listing all available boot devices. 4 On the Boot Options, select the device you want to boot from and press Enter. For example, if you are booting to a USB hard drive, highlight USB Hard Disk and press Enter. Boot Options Following are the devices that your computer can boot from: 53

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Save & Exit
Save Changes and Reset
Allows you to exit system setup and
save your changes.
Discard Changes and Reset
Allows you to exit system setup and
load previous values for all system
setup options.
Restore Defaults
Allows you to load default values for
all system setup options.
Boot sequence
This feature allows you to change the sequence of devices that your computer
attempts to boot from. If the computer cannot boot from the device you select,
it attempts to boot from the next bootable device. You can use this feature to
change the:
•
Current Boot Sequence — change the boot sequence for the current boot,
for example, to boot from the optical drive to run Alienware Diagnostics
from the Drivers and Utilities disc or to reinstall your operating system
using an external media. The previous boot sequence is restored at the next
boot.
•
Future Boot Sequence — change the boot sequence for all future boots, for
example, to boot from the primary hard drive.
Changing boot sequence for the current boot
1
If you are booting from a USB device, connect the USB device to a USB port.
2
Turn on (or restart) your computer.
3
When
F2 Setup
,
F12 Boot Options
appear in the lower-right corner of
the screen, press F12.
NOTE:
If you wait too long and the operating system logo appears,
continue to wait until you see the Microsoft Windows desktop. Then,
shut down your computer and try again.
The
Boot Options
appears, listing all available boot devices.
4
On the
Boot Options
, select the device you want to boot from and press
Enter.
For example, if you are booting to a USB hard drive, highlight
USB Hard
Disk
and press Enter.
Boot Options
Following are the devices that your computer can boot from:
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