system process uses 20% of my cpu while gaming

Discussion in 'Windows Vista Performance' started by hogz, Jan 23, 2011.

  1. hogz


    Nov 1, 2010
    Likes Received:
    I've tried everything: reinstalling windows, updating drivers, reseting the BIOS

    It only happens if I'm doing something that is stressing the CPU, like gaming. It runs fine for a few minutes, then it slows down. The reason: system process is using 20-25% of the CPU.

    According to process explorer, the acpi.sys is the thread which is causing the high usage of CPU of the system process.

    I have no idea what to do. I'm afraid this could be a hardware problem, since a BIOS-reset and an OS-reinstall didn't help at all.

    Any ideas?
    hogz, Jan 23, 2011
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