IBM SelectaDock II, User Manual

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If you have installed a non-PNP (legacy ISA) adapter, assign
system resources to the adapter card you just installed by using
the ThinkPad Features program on your computer. The system
resources you assign are:
IRQ (hardware interrupt request). There are 16 IRQs in
the system, but certain IRQs are reserved by the system.
You can assign unused IRQs for the newly installed devices.
DMA (direct memory access channel). There are 8 DMA
channels: 0 through 7. Certain DMA channels are reserved
by the system. This resource is typically used by adapters
such as sound cards and SCSI adapters for transferring
large blocks of data.
I/O address. The input/output (I/O) address space extends
from X
'
0000
'
to X
'
FFFF
'
. The I/O ports of the features
and adapters are mapped here.
Memory address. This area has BIOS ROM and memory
mapped I/O area of the adapters.
IRQs and memory addresses are typically the most likely
sources of conflict. For instance, if your ISA adapter in your
SelectaDock system is using DMA channel 1, it will conflict with
the audio feature in the computer that uses DMA channels 0 and
1 when enabled. A typical example of such an adapter is the
Sound Blaster adapter.
Always try to select proper values to avoid resource conflict.
To use the ThinkPad Features program, do the following,
depending on the operating system you are using:
For Windows 95, OS/2 Warp, Windows 3.1, or Windows NT,
do the following:
a) Select the ThinkPad folder.
b) Select the ThinkPad Features icon.
c) Select the docking icon .
d) Fill in all the items for the system resource information. Click
on the Help button if you need an explanation about an item.
Chapter 3. Installing and Removing Options
57