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Old 07-17-07, 08:06 PM   #2
shaundennie
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Join Date: Nov 2006
Posts: 79
Default Re: NVreg_RegistryDwords="PerfLevelSrc=0x2222" What Does it do?

I don't know what it's meant to do but, one of the side effects on laptops (or at least my laptop) is that it prevents the GPU from clocking itself down into "standby" mode. This drastically increases the responsiveness of a 3D desktop but can cause the GPU to get extremely warm even while idle.
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