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benefit here is that you do not have to remember the and keystrokes (although they still work).NOTE: The BIOS features an option to disable either or both of the keystrokeprompts under the System Security / Post Hotkeys submenu.When you enter the or keystroke correctly, the computer beeps.The key sequence invokes the Boot Device Menu.Since the one-time boot menu only affects the current boot, it has the added benefit ofnot requiring the technician to restore the customer's boot order after completingtroubleshooting.Timing Key SequencesThe keyboard is not the first device initialized by Setup. As a result, if you press akeystroke too early, you lock out the keyboard. When this happens, a keyboard errormessage appears on the monitor, and you cannot restart the system with the keys.To avoid this scenario, wait until the keyboard is initialized before pressing the keystroke.There are two ways to know that this has happened:• The keyboard lights flash.• The "F2=Setup" prompt appears in the top right-hand corner of the screen duringboot.The second method is good if the monitor is already warmed up. If it is not, the systemoften passes the window of opportunity before the video signal is visible. If this is thecase, rely on the first method—the keyboard lights—to know the keyboard is initialized.60
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