![]() Because I took it out, replaced it with my old video card, and the old video doesn't have this problem (in the same PCI-E slot too btw). xperf.exe showed the device causing the interrupts as "Unknown", but I know it's the ATI video card. In other words, it's basically using about 100% of 1 of my 2 CPU cores. Resource Manager shows System Interrupts taking an average of around 48% CPU use. So, the Task Manager shows up to 50% CPU use even when computer is idle. The problem is that 1 of my 2 cores is constantly in use. ![]() ![]() I have an HP media center m7248n, with an ATI Radeon HD 4850, trying to run a fresh install of Windows 7 64-bit. ![]()
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December 2022
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