Dell OptiPlex 790 (Early 2011) - Manual (Page 53)

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System Setup
System Setup
This computer offers you the following options:
• Access System Setup by pressing
• Bring up a one-time boot menu by pressing
Press to enter System Setup and make changes to the user-definable
settings. If you have trouble entering System Setup using this key, press
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
one-time boot and diagnostics utility menu
one-time boot and diagnostics utility menu
Boot Menu Enhancements
The boot menu enhancements are as follows:
• Easier access — Although the keystroke still exists and can
be used to call up the menu, simply press 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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