Owner`s manual

try and use your MIDI card or play back audio via Mia, 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 Mia, and move the SCSI

card to IRQ 9. An interrupt conflict now exists between the SCSI card and

the older MIDI card.

PCI Cards and Interrupt Conflicts

Some plug & play PCI cards can also cause interrupt conflicts when they try

to share an IRQ with another PCI card. Many PCI cards can share an IRQ

with no problems at all, but some just don’t like to share. For example, you

may have a network card installed, and Windows has it configured to use

IRQ 10. Since that is the only card assigned to IRQ 10, Windows assumes

that it is OK to let it share with the next PCI card that comes along.

Consequently, it may assign Mia to share IRQ 10. This network card

happens to be unfriendly and doesn’t like to share, so the next time you try

to use it or Mia, neither device will function properly.

Resolving Interrupt Conflicts

Although there is no way to automatically detect legacy interrupts,

Windows 95/98/Me 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. Or, if you have a PCI card that

doesn’t like to share you may be able to reassign it to a different IRQ.

The first thing to do if you think you have an interrupt conflict is to

determine which interrupt and which card is causing the problem. To do

this, right-click on the

My Computer

icon on your desktop and select

Properties

, or go to

Start

–

Settings

–

Control Panel

and double-click the

System

icon. In the window that appears, select the

Device Manager

tab.

Now, highlight

Computer

, and click the

Properties

button. A new window

will appear that lists all of the interrupts (IRQs) that Windows 95/98/Me

recognizes are in use and the cards or resources to which they are assigned.