Dell OptiPlex Gn+, Справочное и монтажное руководство

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Using the System Setup Program 2-7
Boot Sequence
Boot Sequence can be set to Diskette First (the default),
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 boot-
ing from drive A first. If it finds a diskette that is not
bootable in the drive or finds a problem with the drive
itself, the system 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
option read-only memory (ROM) devices in the order
found.
Hard Disk Only
Selecting Hard Disk Only causes the system to attempt
to boot from the hard-disk drive first, then from the
Plug and Play option ROM devices in the order found.
CD-ROM First
Selecting CD-ROM First causes the system to try boot-
ing from the CD-ROM drive first. If it finds a problem
with the drive, the system 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 0, and finally from
the Plug and Play option ROM devices in the order
found.
Device List
Device List allows you to select a boot device from a list
of all available boot devices on your system and set 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 2-2 lists other navigation keys
used on the Device List screen.
Table 2-2. Device-List Screen Navigation Keys
The Device List screen (see Figure 2-2) provides three
categories for listing and prioritizing the available boot
devices on your system:
•
Boot Device Priority
•
Exclude From Boot Device Priority
•
Device Controller Priority
The Boot Device Priority category lists all bootable
devices (hard-disk drives, CD-ROM drives, and so on)
that are controlled by the system BIOS and any Plug and
Play network adapters installed in the system.
CAUTION: Only a technically knowledgeable per-
son should change the settings in the Device List
screen.
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
or
or