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IRQ checking problem, please assist

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debeo

Junior Member
I think there is a conflict with my USB Optical mouse and my sound card. When I plug my mouse in, the system won't boot (I've discussed this in another post, here), so I can't exactly check the IRQ of where the mouse is at. Or can I? When I enter safe mode, the system boots to Windows, but all devices are 'unknown' in the IRQ listing under the Device tab. I need to find the IRQs of both, and change one if there is a conflict. I've just never had to do this before.

Any help would be great.
debeo
 
Does your sound card support IRQ sharing in its device manager properties? If so, does disabling it make a difference? Also, try disabling the sound card itself (check the 'disable in this hardware profile' box, uncheck the 'exists in all' box, and then try booting with your mouse. This will at least eliminate or confirm the mouse/sound card question.
 
I disabled the sound card and plugged the mouse into the USB port. It works.

For now, I'm running the optical mouse through PS/2, but I'd like to run it through USB. I can't locate what IRQ the mouse runs at when running through USB (it doesn't show in the device settings), so I'm a bit confused. Could you help me out?

debeo
 
No device on the USB bus uses an IRQ. Only the USB controller uses an IRQ. Which is one of the benefits of USB: 127 devices, one IRQ!

I think the USB controller usually grabs IRQ 12.
 
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