I agree, I got about 70ºc with the damn Apogee GTz, in the day without the a/c while im at work it hits mid 70's. For now I lowered from 4GHz to 3.7 GHz at 1.28v. Temps stay low 60's. I will be getting a torture rack soon and hopefully with better cooling this block will be slightly more efficient as everything else around it will stay cooler. I need a damn HK block!