Operation Manual

Almost all system boards use a coin‑cell battery that helps retain BIOS settings, including the password. To reset the password, remove the
coin‑cell battery, wait for 15 to 30 seconds and replace the coin‑cell battery.
NOTE: For more information on the location of the coin‑cell battery and instruction on removing and replacing it, see the Service
Manual at www.dell.com/support.
Use system‑board jumper
NOTE: System-board jumper is available only on desktop computers.
Almost all system boards on desktop computers contain a jumper to clear CMOS settings along with the BIOS password. The location of
this jumper varies depending upon the system board. Look for the jumpers near the CMOS battery, usually labeled as CLR, CLEAR, CLEAR
CMOS, and so on.
For procedure on clearing passwords and clearing CMOS settings, see your computer Service Manual at www.dell.com/support.
Changing the boot sequence
You may need to change the boot sequence to boot from a device other than your default device, for example when reinstalling the
operating system or, using a recovery disc or USB drive.
You can select the boot order using the Boot Menu or the BIOS setup program.
Using boot menu
Use the Boot Menu to change the boot sequence of your computer for the current boot.
NOTE
: Your computer boots from the selected device only for the current boot and returns to the default device next time you
reboot your computer.
To select a boot device using the Boot Menu:
1 Turn on or restart your computer.
2 Press F12 at the Dell logo to access the boot menu.
NOTE
: If you wait too long and the operating system logo appears, continue to wait until you see the Windows desktop,
then restart your computer and try again.
3 Use the up-arrow or down‑arrow keys to select the device you want to boot from and press Enter.
Using BIOS setup program
Use BIOS setup program to select the order of devices your computer uses to boot every time.
To change the boot sequence using BIOS setup program:
1 Enter BIOS setup program.
2 Select the Boot tab.
3 Select the check boxes to enable or disable the devices to be used for booting.
4 Move the devices up or down to change the boot sequence.
NOTE
: The rst device in the list is the default boot device.
BIOS 61