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You may need to run a setup program or configuration utility to configure a new adapter. On ISA and some MCA bus machines, you may need to change the interrupt vector and I/O addresses set on the host adapter to avoid conflicts with existing adapters. You should also disable the BIOS on secondary controllers that you install. See ``Using the manufacturer's setup program'' and refer to your hardware documentation for detailed instructions.
A host adapter is configured into the system when you first install one of the peripheral devices connected to the SCSI bus that it controls. See ``Adding a SCSI peripheral device''.
The number of different SCSI host adapters that can be configured for use with your system should be specified in the hardware documentation. See ``New features in this release'' for information about new mass storage drivers supported in this release.
Information on diagnosing and fixing problems is presented in ``Troubleshooting SCSI host adapters''.