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try and use your MIDI card or play back audio via Darla24, neither device
will function properly.
Or, maybe you have a SCSI card that had previously been assigned to IRQ
10. The BIOS may now decide to assign IRQ 10 to Darla24, and move the
SCSI card to IRQ 9. An interrupt conflict now exists between the SCSI card
and the older MIDI card. In this case, you’re probably cursing at your new
card (and possibly us) for messing with your SCSI interface
after all,
everything worked fine before the new card was installed. Since we’re quite
sensitive about being yelled at, we want to help you resolve any conflicts (of
the interrupt variety) you may be having.
Resolving Interrupt Conflicts
Although there is no way to automatically detect legacy interrupts,
Windows 95/98 and some BIOS’s allow you to reserve specific interrupts
for legacy use. Once an interrupt is reserved it will not be assigned by Plug-
and-Play to another card.
The first thing to do if you think you have an interrupt conflict is to
determine which interrupt and which legacy card is causing the problem. To
do this, run the Reporter software that came with your Darla24 card. For
now, you can skip over the hard disk performance test since it has nothing
to do with interrupts. Once the Reporter has finished the diagnostic routine,
it will provide you with a list of all of the interrupts that Windows 95/98
recognizes are in use and the cards or resources to which they are assigned.
Write down the interrupts that are listed and the devices that are assigned to
them. Pay particular notice to the interrupt to which Darla24 is assigned.
Once you know which interrupt your Darla24 is trying to use; you need to
locate which legacy card is potentially causing the conflict. To do this you
will need to dig out the manuals for whatever cards are installed and
examine the jumper settings to determine which interrupts, if any, are used.
Hopefully, at this point you will find an offending card that was not listed
by the Reporter software but is using an interrupt assigned by Windows to
another device.