Yeah, I have realized that higher ambients result in at least a 1:1 increase in temperature, but usually more it seems. I am just about to reboot and run it at 3.2ghz until I buy a window-mounted A/C when I move into my new place. Simply increasing the fan speed by about 25% resulted in a drop from 52C to 43C over the course of writing this. I guess these radiators don't like low fan speeds. I guess having five Hard drives mounted in the rack right in front of one of the radiator fans isn't going to help much either.