Changing Boot Sequence For The Current Boot; Changing Boot Sequence For Future Boots - Dell Dimension E520 Service Manual

System Setup: Dell Dimension E520 Service Manual
NOTE:
The computer attempts to boot from all bootable devices, but if no bootable device is found, the computer
generates an error message that states No boot device available. Press the <F1> key to retry the boot, or press the
<F2> key to enter the setup utility.
Onboard or USB Floppy Drive — The computer attempts to boot from the floppy drive. If there is no floppy in the
drive or there is no floppy drive installed, the computer attempts to boot from the next bootable device in the
sequence.
NOTE:
If there is a non-bootable floppy in the drive, the computer generates an error message. Follow the on-
screen instructions to retry the boot.
Onboard SATA Hard Drive — The computer attempts to boot from the primary hard drive. If no operating system is
on the drive, the computer attempts to boot from the next bootable device.
Onboard or USB CD-ROM 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 attempts to boot from the next bootable device.
USB 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 option to the boot
menu.
NOTE: To boot to a USB device, the device must be bootable. To ensure that your device is bootable, check the
device documentation.

Changing Boot Sequence for the Current Boot

You can use this feature, for example, to restart your computer to a USB device, such as a floppy drive, memory key, CD-RW
drive, or PXE (NIC).
NOTE:
If you are booting to a USB floppy drive, you must first set the floppy drive to OFF in system setup (see
Setup Options).
1. If you are booting to a USB device, connect the USB device to a USB connector (see
2. Turn on (or restart) your computer.
3. When the DELL logo appears, press <F12> immediately.
NOTE: Keyboard failure may result when a key on the keyboard is held down for extended periods of time. To
avoid possible keyboard failure, press and release <F12> in even intervals until the Boot Device Menu appears.
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>.
NOTE: To boot to a USB device, the device must be bootable. To make sure your device is bootable, check the device
documentation.

Changing Boot Sequence for Future Boots

1. Enter system setup (see
2. Use the arrow keys to highlight the Boot Sequence menu option, then press <Enter> to access the menu.
file:///T|/htdocs/systems/dimE520/en/SM_EN/syssetup.htm[10/16/2012 1:04:54 PM]
Entering System Setup).
Front View of the Computer).
System