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When running on older AMD 64 dual-core CPUs, my video skips – my machine is really fast, why is this happening?

April 26, 2017AMD CPUs dual-core fast Machine Older running skips video

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When running on older AMD 64 dual-core CPUs, my video skips – my machine is really fast, why is this happening?

1 Answer

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There is a bug in the Windows system timer code when running on some older AMD CPUs. The easiest way to work around it is to edit your c:\boot.ini file with Notepad, and add the switch “/usepmtimer” (without the quotes) onto the end of the Windows lines under the [operating systems] section, and then reboot. This problem is fixed in Windows XP SP2 and doesn’t happen in Vista.