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Terminate The Ends; Check The Scsi Ids - Adaptec AHA-2940U2 Installation Manual

Storage controller u2w scsi 80 mbps

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Insert the SCSI Card 2940U2W into the PCI expansion slot; press
S
4
TEP
down firmly until it clicks into place, then replace the slot cover screw.
S
U
SCSI P
ETTING
P
Setting up SCSI peripherals before attaching them to the SCSI Card
2940U2W typically involves setting SCSI IDs and termination, mount-
ing internal peripherals inside your computer, and connecting power
cables to each peripheral. Since setup can vary from peripheral to
peripheral, always refer to the peripheral's documentation for specific
instructions. Below are some guidelines for setting SCSI IDs and ter-
mination on your peripherals.
N
OTE
If you refer to the peripheral's documentation for installa-
tion instructions, be sure to return to this document to continue
with installation of the software included in the package.

Check the SCSI IDs

The SCSI Card 2940U2W and each peripheral you connect to it
requires a unique SCSI ID number ranging from 0 to 15. ID numbers
don't have to be sequential, as long as the SCSI Card 2940U2W and
each peripheral has a different number.
The SCSI Card 2940U2W is preset to ID 7 and should not be changed.
If you will be booting from a SCSI hard disk, it's best to set the disk's ID
at 0 or 1. Most SCSI hard disks come from the factory preset to ID 0.
The IDs for internal peripherals are usually set with jumpers; external
peripherals are usually set with a switch on the back of the peripheral.

Terminate the Ends

To ensure reliable communication on the SCSI bus, the peripheral at
the end of each cable, or the end of the cable itself, must have a termi-
nator installed (or enabled). The peripherals between the ends of each
cable must have the terminator removed (or disabled).
SCSI Card 2940U2W Installed
in a PCI Expansion Slot
ERIPHERALS
4

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