Legacy Adapters
Adapters that are not Plug and Play compatible are known as legacy devices. If you
install a legacy adapter, you must manually configure it by setting switches on the
adapter and by allocating system resources using the Configuration/Setup Utility
program.
In the Configuration/Setup Utility program, the ISA Legacy Resources screen shows
the computer resources that are typically required by adapters:
Memory resources
I/O port resources
DMA resources
Interrupt resources
From the appropriate screens, you can select available resources for the adapter you
are installing. Resources not being used by ISA legacy adapters are listed as
[Available]. You must set the resources used by the newly installed ISA legacy
adapter to [Not available]; this enables the software to use these system resources
for the adapter.
Just as you change system resources for installed adapters, you must also change
resources when you remove an ISA legacy adapter. If you remove a legacy adapter,
change the resources it formerly used to [Available]. This allows the Plug and Play
software to automatically use these resources for future configurations, or you can
use these resources for future manual configurations.
Notes:
1. If you are installing both legacy and Plug and Play adapters, install the legacy
adapters first, and then install the Plug and Play adapters. Plug and Play
adapters will configure around the resources used by legacy adapters.
2. Refer to the documentation that comes with the adapter for information on
required system resources.
For information on using the Configuration/Setup Utility program when
configuring ISA legacy adapters see “Configuring an ISA Legacy Adapter” on
page 70 or refer to Using Your Personal Computer. For more information on error
messages from resource conflicts, see Using Your Personal Computer.
Chapter 4. Working with Adapters
27
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