Mitsubishi Electric APRICOT 340 Owner's Handbook Manual page 70

A d d i n g E x p a n s i o n C a r d s
12. If the card you have just installed is intended to control a
Declaring ISA legacy resources
If you have just installed an ISA card, your first task after turning on
the computer is to run the BIOS Setup utility and declare the legacy
resources (that is, the interrupt, DMA channel, and so on) used by
the card. This is necessary so that any PCI card fitted can be
configured automatically and won't try to use the same settings.
See the chapter on "Using the BIOS Setup Utility" for more
information.
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removable-media drive, turn to the next chapter for
instructions on installing the drive itself. Otherwise, replace the
system unit cover.