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Adaptec SCSI Card 39160 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, BIOS addresses, and so
forth).
■Each SCSI card you install forms a separate SCSI bus with a
different 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).
■If you have two or more SCSI cards and your computer boots
from a SCSI disk drive, leave the host adapter BIOS enabled on
the SCSI card to which the boot disk drive is connected. Use
SCSISelect to disable the host adapter BIOS on the other SCSI
cards.
Connecting the LED Connector(Optional feature) Most computers have an LED disk activity light on
the front panel of the system case. If you choose to disconnect the
cable from the LED connector on the motherboard and connect it to
the LED connector on the SCSI card as shown in the diagram below,
the LED on the front panel of the computer will light whenever
there is activity on the SCSI bus.
Note:
If you connect the LED cable to the SCSI card, the LED
disk activity light will no longer indicate disk activity on the
non-SCSI disk drives.
LED Connector
on host adapter
1
LED Cable
from
motherboard
Pin 1
1
2-pin
LED
Cable