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Old July 2, 2012, 10:01 PM
ilya ilya is offline
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Join Date: Feb 2010
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A PSU pretty much can't affect performance without causing instability of some sort.

You didn't mention whether or not you've checked your temps and whether or not anything is overclocked, that information might help.

DPC latency rarely causes severe performance issues, (mostly minor lag issues) but they're one of the more common causes of audio crackling/popping/static. It wouldn't hurt to check: DPC Latency Checker
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