Installed a piece of hardware not compatible with my processor

[JrMOnroe]

Hello,
I installed a USB Mixing interface, not noticing that it was only compatible with Pentium processors. Ever since I have have a problem with the sound and display. Please help. I like this paperweight
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[scorpinock2]

It should not really mater if it is USB based. Make sure you have the latest drivers from the manufacturers website and see what that does. Also try using it with a number of different programs and see what results you get.