Latitude 3120/Latitude 3120 2-in-1 Service Manual

To initiate a one-time boot menu with a list of the valid boot devices for the system, press <F12> when the Dell logo is displayed. Diagnostics and BIOS Setup options are also in this menu. The devices that are listed on the boot menu depend on the bootable devices in the system. This menu is useful when you are attempting to boot to a particular device or to bring up the diagnostics for the system. Using the boot menu, do not change the boot order that is stored in the BIOS.