Installation guide

SCSI Card 2906 User’s Reference

Installing Multiple SCSI Cards

■

You can install multiple SCSI cards in your computer; you are

limited only by the available system resources (for example,

IRQ settings, I/O port addresses, etc.) not used by other cards

installed in your computer.

■

Each SCSI card you install forms a separate SCSI bus with a dif-

ferent set of SCSI devices. SCSI IDs can be reused as long as the

ID is assigned to a device on a different SCSI card (for example,

each SCSI card can have a device with SCSI ID 2).

Using SCSI and IDE (or EIDE) Devices

■

All Adaptec SCSI cards can coexist with another controller

(IDE, EIDE, RLL, etc.) installed in the computer.

■

If you have both an IDE hard disk drive and a SCSI hard disk

drive, the IDE drive will be the boot drive.

■

You cannot connect an IDE device to a SCSI card, or a SCSI

device to an IDE card (controller).

Replacing a Non-Adaptec SCSI Card with an

Adaptec SCSI Card

To use a hard disk drive previously connected to a non-Adaptec

SCSI card, you must low-level format the drive after connecting it to

the Adaptec SCSI card. (See

Using SCSI Disk Utilities

on page 19.)

Caution:

A low-level format destroys all data on the drive.

Be sure to back up your data before performing a low-level

format.