BIOS overviewThe BIOS manages data flow between the computer's operating system andattached devices such as hard disk, video adapter, keyboard, mouse, andprinter.Entering the BIOS setup program1 Turn on or restart your computer.2 Press F2 when the Dell logo is displayed on the screen to enter the BIOSsetup program.You can change the user-defined settings in BIOS setup program.Boot menuThe Inspiron 17-7778 includes a one-time boot menu. By using this feature,you can change the sequence of devices that your computer attempts toboot from, for example, floppy, CD-ROM, or hard drive.Boot menu enhancementsThe boot menu enhancements are as follows:• Easier Access — Press F12 to access the boot selection menu.• User Prompting — The user is prompted to use the keystroke on the BIOSscreen.• Diagnostics Options — The boot menu includes the ePSA diagnosticoptions.Timing key sequencesThe keyboard is not the first device initialized by Setup. As a result, if you pressa keystroke too early, the keyboard is locked out. In such case, a keyboarderror message is displayed on the screen, and you cannot restart yourcomputer with the Ctrl+Alt+Del key combination.To prevent the keyboard from locking, wait until the keyboard is initializedcompletely. The keyboard is initialized if one of the following occurs:• The keyboard lights flash.148
