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Using Your Host Adapter
Now that your host adapter is installed, read this section
for useful tips and information on using your host
adapter.
You may need to install the manufacturer's propri-
etary device drivers if you use SCSI devices other than
hard disk drives and CD-ROM drives. (See your
device's documentation.)
Be sure to use a high-quality SCSI cable to connect the
device to the host adapter. This ensures reliable data
transfer.
Your host adapter can support the SCSI Configured
AutoMatically (SCAM) protocol, which assigns SCSI
IDs dynamically and resolves SCSI ID conflicts auto-
matically at bootup. To enable or disable SCAM sup-
port, see Advanced Host Adapter Settings on page 6. If
SCAM is enabled, and your SCSI device or hard disk
drive supports SCAM, you do not need to set SCSI IDs
manually. Most SCSI devices currently in use, however,
do not support SCAM and must have the SCSI ID set
manually.
SCSI hard disk drives
SCSI hard disk drives are physically formatted at the
factory and should not need to be low-level format-
ted again. Low-level formatting should only be nec-
essary if the hard disk drive is corrupted. See Using
the SCSI Disk Utilities on page 5 for more information.
If you connect a new hard disk drive to your host
adapter, you must partition and logically format the
drive. For DOS and Windows 3.x, use the afdisk com-
mand in the c:\scsi directory if you have EZ-SCSI. If
you do not have EZ-SCSI, read your system docu-
mentation and/or contact your distributor for more
information. For Windows 95, make sure that Int13 is
selected (see your Windows 95 documentation), then
reboot and use the fdisk and format commands in a
Windows 95 DOS session. For other operating sys-
tems, see your operating system documentation.
Because the host adapter does not have a BIOS, the
computer cannot boot from a SCSI hard disk drive
connected to the host adapter.
4
Multiple Host Adapters
Multiple SCSI host adapters can be installed in your
computer; you are limited only by the available sys-
tem resources (e.g., I/O port and IRQ channel).
Each host adapter 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 host adapter (e.g., each host adapter can
have a device with SCSI ID 0).
Setting Host Adapter Jumpers
There is one jumper on your AVA-1505AE/AI host
adapter. Jumper J3 controls the I/O Port Address. You
do not need to change the J3 Jumper setting in Plug and
Play systems.
If you have a non-Plug and Play system, you may need
to change the I/O address if it conflicts with another
device installed in your system. To change the I/0
Address, remove the shunt from Jumper J3.
Settings
I/O Port Address—340h
I/O Port Address—140h
J3
Off
On
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