SPS
Moderator
You know negative ambient would mean condensation forming around the CPU. Since I didn't see a peltier hooked up or any insulation there, it's a good guess your temperature sensors were either out of whack, or you were doing something funky.
It's a fun experiment to do if you're bored on a Sunday, but you didn't turn the crazy meter up high enough. I would have chosen a 80mm-thick 120.4 radiator with 40 fans on each side, and mount it to the top of a case - Thunderbird case mod anyone?
Are you trolling or being serious ??!!?