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
To resolve this problem with the
❖Note that PCI devices cannot share interrupt lines with EISA or ISA devices.
Other possible solutions to the above problems:
■Move the Matrox
■Swap Matrox
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:
