Basically when turned on it stops the cpu voltage from dropping. I leave it off, and my CPU voltage drops from 1.29375v to 1.29v under load. The vid of my chip is 1.18 so 1.29 is nothing really.
http://webcache.googleusercontent.c...ios_vdroop.asp+evga+vdroop&cd=1&hl=en&ct=clnk
5970 heat have little effect really on cpu and system stability. My gpus run at 35-38 degrees idle when not being stressed and hardly impact cpu or system temps. And they never pass 70 under load. I have 2 140mm fans on the sidepanel of my case which also direct airflow to the bottom 3 fans of each card, plus the pci-e slots are vented.
http://webcache.googleusercontent.c...ios_vdroop.asp+evga+vdroop&cd=1&hl=en&ct=clnk
5970 heat have little effect really on cpu and system stability. My gpus run at 35-38 degrees idle when not being stressed and hardly impact cpu or system temps. And they never pass 70 under load. I have 2 140mm fans on the sidepanel of my case which also direct airflow to the bottom 3 fans of each card, plus the pci-e slots are vented.
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