Mine's already running 59°C at stock clocks with a 24°C ambient with the controller case still open.. I wouldn't try, really.

Seeing as I cannot obtain that C2G HDMI power inserter, I simply just tried the first one I could find on eBay. It turns out to be identical to the one Odissine showed images of, with the power already going to both ends on pin 18. Now, what happens when I use the adapter unmodified like that is wei...