Specifications

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Note
PC-DOS and MS-DOS allow installing one or two hard disk
drives, while DR-DOS allows up to eight.
n BOOT Device Specification -- the board's Configuration Memory also contains a parameter
indicating whether a hard disk or floppy drive is to be used as a boot device. SETUP's
"Extended Options/Peripheral Configuration" menu contains this parameter. Using this
option, the boot device can be set as either the "Floppy Drive" or "Hard Drive". When "Hard
Drive" is selected, the drive indicated by this menu under "1st Hard Disk" becomes the boot
drive.
n SCSI Disk I/O Retries -- you can specify the number of read/write retries to be performed
by the board's ROM-BIOS routines during DOS use of SCSI drives. This option is located
in SETUP's "Extended SCSI and Hard Disk Configuration" menu.
n SCSI/BIOS Services Enable/Disable -- you can enable or disable the SCSI functions within
the board's ROM-BIOS. Naturally, if you want to use SCSI for hard disk drives under DOS,
this option must be enabled. Disabling the SCSI/BIOS services will speed up system
booting when the SCSI functions in the BIOS are not required, and will prevent the BIOS
from accessing the SCSI hardware in applications that use the SCSI interface for non-SCSI
purposes.
Note
Do not define disk drive parameters for the "AT HDC Disk"
options in SETUP's "Standard (CMOS) Setup" menu for
SCSI-connected drives. These parameters are for defining
drives connected to an AT bus hard disk controller, or for
drives connected to an "ATA" (or "IDE") drive interface.
4.0.0....._@_@ Preparation for DOS Use
Before you can use a hard disk drive connected to the board’s SCSI port, it must be properly
connected and jumpered, and the appropriate parameters must be set in the board’s Configuration
Memory as indicated above. In most cases, formatting and other preparation for use with DOS is
a simple process, and can be accomplished as indicated in this section. For additional details on
the installation and preparation of SCSI disk drives, refer to the detailed program descriptions in
the Appendix of this manual.