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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'LVNHWWH)LUVWtells the system where to look for the files that it needs to load.

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

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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￿520)LUVW. The system will not attempt to boot from drive A or the CD-ROM drive.

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 'HYLFHthe Plug/LVWand Play network adapters in the order found.

Device List provides access to the Device List screen (see Figure 3-2), where you can choose from a list of available boot devices and specify the order in which your computer attempts to boot from these devices. To view the Device List screen, press

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The Device List screen provides three options for listing and prioritizing the available boot devices on your system:

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Boot Device Priority

Exclude From Boot Device Priority

Device Controller Priority

3-12 Dell Precision 210 Desktop Systems User’s Guide