So just recently, around 2-3 nights ago, my computer started slowing down. At the same time, Process Explorer was reporting that hardware interrupts made up most of my CPU load. From then on, any time I do anything on my computer, interrupts average around 50% of the CPU load, and cause noticeable audio hitching and slowdown.
That shouldn't be happening. Why is it happening, and how can I fix it? I'm running Windows XP SP2 on an Intel iMac.
So far I've run Avast, Spybot S&D, and Adaware. I've also defragmented and run chkdsk.
Tell me there's something else I can do that doesn't involve re-installing.
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It's unlikely that you have that particular card (I think it was an Nvidia 8800GT?) in an Intel iMac, but just be aware that it's not necessarily a software problem.