Dell OptiPlex GX1 Installation Manual page 46

to Locked. In this state, the system password cannot be changed through the System Password option and cannot be disabled at system start-up
by pressing <Ctrl><Enter>.
To unlock the system password, you must enter the setup password in the Setup Password option and then change the Password Status option to
Unlocked. In this state, the system password can be disabled at system start-up by pressing <Ctrl><Enter> and then changed through the System
Password option.
Boot Sequence
Boot Sequence can be set to Diskette First (the default option), Hard Disk Only, CD-ROM First, or Device List.
The term boot refers to the system's start-up procedure. When turned on, the system "bootstraps" itself into an operational state by loading into
memory a small program, which in turn loads the necessary operating system. Boot Sequence tells the system where to look for the files that it
needs to load.
Diskette First
Selecting Diskette First causes the system to try booting from drive A first. If the system finds a diskette that is not bootable in the drive or finds a
problem with the drive itself, it displays an error message. If it does not find a diskette in the drive, the system tries to boot from the hard-disk drive
(drive 0), then from the CD-ROM drive, and finally from the Plug and Play network adapters in the order found.
Hard Disk Only
Selecting Hard Disk Only causes the system to attempt to boot first from the hard-disk drive and then from the Plug and Play network adapters in
the order found.
CD-ROM First
Selecting CD-ROM First causes the system to try booting from the CD-ROM drive first. If the system finds a CD that is not bootable in the drive or
finds a problem with the drive itself, it displays an error message. If it does not find a CD in the drive, the system tries to boot from drive A, then
from drive C, and finally from the Plug and Play network adapters in the order found.
Device List
Device List provides access to the Device List screen where you can choose from a list of available boot devices to boot from and specify the
order in which your computer attempts to boot from these devices. To view the Device List screen, press <Ctrl> and the right-arrow key. Table 2
lists other navigation keys used on the Device List screen.
Table 2. Device-List Screen Navigation Keys
Keys Action
Returns the boot device lists to the default settings
Moves the selected item up or down in the boot sequence
Exits to Page 2 of the System Setup screens
Moves the selected item from one Boot Device Priority list to the other
NOTICE: Only a technically knowledgeable person should change the settings in the Device List screen.
The Device List screen (see Figure
Figure 2. Sample Device List Screen
2) provides three options for listing and prioritizing the available boot devices in your system.