Dell XPS 730 H2C (Late 2008) - Manual (Page 45)

Changing Boot Sequence for the Current Boot
For example, you can use this feature to boot your computer from the CD drive so that you can run the Dell Diagnostics from the Driver and Utilities media and
then from the hard drive when the diagnostic tests are complete. You can also use this feature to boot your computer to a USB device such as a 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.
3. When the DELL logo appears, press <F12> immediately.
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.
4. At the Boot Device Menu, use the up- and down- arrow keys or press the appropriate number on the keyboard to highlight the device that is to be
used for the current boot only, and then press <Enter>.
For example, if you are booting to a USB memory key, highlight USB Flash Device and press <Enter>.
Changing Boot Sequence for Future Boots
1. Enter system setup (see Entering System Setup ).
2. Use the arrow keys to highlight the Boot Sequence menu option and press <Enter> to access the menu.
3. Press the up- and down-arrow keys to move through the list of devices.
4. Press the spacebar to enable or disable a device.
5. Press plus (+) or minus (–) to move a selected device up or down the list.
Clearing CMOS Settings
1. Follow the procedures in Before You Begin .
2. Power down the computer and remove the power cord.
3. Power off all external peripherals.
4. Remove the computer cover (see Replacing the Computer Cover ).
5. Locate the Reset CMOS jumpers on the system board (see System Board Components ).
6. Remove jumper from pins 2 and 3.
Dell™ XPS™ 730
NOTE: Keyboard failure may result when a key on the keyboard is held down for an extended period of time. To avoid possible keyboard failure,
press and release <F12> in even intervals until the Boot Device Menu appears.
NOTE: To boot to a USB device, the device must be bootable. To ensure that your device is bootable, check the device documentation.
NOTE: Make a note of your current boot sequence in case you want to restore it.
NOTE: This procedure does not clear or reset system and setup passwords.