Dell OPTIPLEX 990 Service Manual download pdf (Page 54)

System Setup

This computer offers you the following options:

• Access System Setup by pressing <F2>

• Bring up a one-time boot menu by pressing <F12>

Press <F2> to enter System Setup and make changes to the user-definable

settings. If you have trouble entering System Setup using this key, press <F2>

when the keyboard LEDs first flash.

Boot Menu

This feature gives users a quick and convenient mechanism to bypass the

System Setup-defined boot device order and boot directly to a specific device

(for example: floppy, CD-ROM, or hard drive).

Keystroke Function

<Ctrl><Alt><F8> one-time boot and diagnostics utility menu

<F12> one-time boot and diagnostics utility menu

Boot Menu Enhancements

The boot menu enhancements are as follows:

• Easier access

— Although the <Ctrl><Alt><F8> keystroke still exists and can

be used to call up the menu, simply press <F12> during system boot to

access the menu.

• User prompting

— Not only is the menu easy to access, when you are

prompted to use the keystroke on the BIOS splash screen (see image

below). The keystroke is not "hidden".

• Diagnostics options

— The boot menu includes two diagnostic options, IDE

Drive Diagnostics (90/90 Hard Drive Diagnostics) and Boot to the Utility

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Dell OPTIPLEX 990 Service Manual Page 54