Re: Quick clocks question.
Someone mentioned on another site that throttling should be in fact working. I went into Device Manager, and for whatever reason there was a standard VGA Adapter installed alongside the 580 GTX, as well as some hidden older Monitor profiles. Uninstalled those, rebooted, and now things are throttling properly.
Still, even when the clocks were at full speed, and the fan was only running at 30%, the idle temps never crept above 40C. This Twin Frozr III cooler on the MSI is the bomb. Most cards running at full clock speed with the fan only at 30% would be getting mighty toasty.