I use my 2012 mini as a DAW. Not had any trouble with it at all till yesterday. A program appeared locked up--a unusual thing and I checked my temps and saw my CPU was at 196 F & the fan was only spinning at 1800 rpm. I shut it down, disconnected everything & took the bottom cover off to see if it was really hot. Fan is clean with nothing obstructing air-flow. It was hot to the touch along the baffle. So I hooked monitor back up to it and booted into the hardware test. Everything was normal, no problems found. I reset the PRAM & SMC, booted up to see the CPU temp at 150 F--about 30+ degrees higher than normal. The fan would not spin above 1800-1805 rpms no matter how hot the CPU. So I downloaded smc fan control and with it can increase the speed of the fans which lowers cpu temp. Still, I am not happy with this situation. I did upgrade to 10.8.3 the other day with no apparent issues that I could find. The fan thing started the evening after that update. I worked all yesterday with the machine without any problems till the heat increase started last evening. Any suggestions?