I've been running my AC/PC for 3 years, but it does have its limits. Modified the piping a little bit to allow my PC to safety intake the -9.5C outside air. Seems to work great! lol I do feel like my 5950X score is low for 4925Ghz all core when compared to others boosting the same or lower all in the 18K range, and even did a fresh Windows install to try and resolve the issue. First time breaking 38K with my Merc 310 7900 XTX with Asrock Aqau BIOS flash though, so that's pretty sweet.