Acrosser AR-B1320 - Manual (Page 40)

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Hard Disk Setup
The BIOS not only supports various types for the user settings but also supports and Slave>, so the user can install up to two hard disks. For the master and slave jumpers, please refer to
the hard disk’s installation descriptions and the hard disk jumper settings.
You can select under the and fields. This will enable auto detection of
your IDE drives during boot-up. This will allow you to change your hard disk drives (with the power off)
and then power on without having to reconfigure your hard disk drive type. If you use older hard disk
drives, which do not support this feature, then you must configure the hard disk drive in the standard
method as described above by the option.
Boot Sector Virus Protection
This option protects the boot sector and partition table of your hard disk against accidental
modifications. Any attempt to write to them will cause the system to halt and display a warning
message. If this occurs, you can either allow the operation to continue or use a bootable virus-free
floppy disk to reboot and investigate your system. The default setting is <Disabled>. This setting is
recommended because it conflicts with a new operating systems. Installation of new operating system
requires that you disable this to prevent write errors.