IBM 315, Hardware Maintenance Manual Supplement

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Input/Output System (BIOS). The BIOS routines then
automatically configure the adapter around the resources
already in use by other devices.
Most adapters designed for PCI slots are Plug and Play
devices. However, many ISA adapters are not Plug and
Play devices. These adapters are discussed in “Legacy
Adapters.”
Notes.
1. If a resource conflict arises after you install a
Plug and Play adapter, you might need to change
the default resource settings on the adapter. For
more information, refer to the documentation that
comes with the adapter.
2. For a description of resource conflicts, see
“Server Configuration Conflicts” on page 76.
Legacy Adapters:
If an adapter that you install is
not Plug and Play compatible, the Setup utility program
can help you manually configure the adapter. Adapters
that are not Plug and Play compatible are known as
legacy
devices.
Setup Utility Program:
Within the Setup utility
program, the ISA Legacy Resources screen displays
server resources that are typically required by adapters:
Ÿ
I/O port address
Ÿ
Memory address
Ÿ
IRQ line
Ÿ
DMA channel
From the Setup utility program screens you can select
available resources for the adapter you are installing.
Resources not currently being used by adapters that are
already installed in the server are listed as [Available].
The system resources that are in use by other devices are
listed as a [System Resource].
Refer to the documentation that comes with the adapter for
information about required system resources. Then make
the appropriate jumper or switch settings on the adapter.
If you have a resource conflict, set the resources used by
the ISA legacy adapter to [Not available]. This will
manually configure the ISA legacy adapter to that specific
server resource. Once Plug and Play detects that a
resource is not available, it will skip that resource, and
reconfigure to other available system resources.
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PC Server HMM