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Common problems and solutions 79
☛ IRQ conflicts
In general, PCI devices can share an interrupt line (IRQ).
However, sometimes this might not be possible; for example,
complex PCI devices, or bus master devices should not share
an IRQ. The types of difficulties that you might run into are as
follows:
■ IRQ conflict under Windows NT 4.0
In the event that your Matrox imaging board(s) cannot share
an IRQ line with other devices, allocate a different IRQ to
each device in the IRQ Configuration Setup section of the
BIOS Setup Program, if possible (accessible on bootup).
■ IRQ conflict under Windows 98
To resolve this problem with the PCI and CompactPCI form
factors, either re-assign a different IRQ line to the PCI slot
in which the Matrox Meteor-II board is installed or change
the resource settings in the Windows’ Device Manager
property page. This page can be accessed using the System
utility in the Control Panel.
To resolve this problem with the PC/104-Plus form factor,
change the rotary switch settings.
❖Note that PCI devices cannot share interrupt lines with EISA
or ISA devices.
Other possible solutions to the above problems:
■ Move the Matrox Meteor-II board to another (free) PCI slot.
■ Swap Matrox Meteor-II with another board.
Problems during application development
☛ Computer ‘hangs’ or produces unwanted results while an
application is running
Sometimes, an EISA or ISA device might attempt to use the
same interrupt, registers, or memory space as PCI boards, and
this causes a conflict. Check for an interrupt, memory, or
register conflict: