Mini has been fine for months (latest revision) Today the Fan has got stuck at full RPM. Nothing different, no intensive work etc. Istat was reporting that cpu a was at 32 degress and cpu b (which became cpu a) at 75. Now istat cant find any fans in the system. Have tried an smbus and pram reset, machine is physically cold and no hot air coming out... cant take it back to apple. it fires up at full power and stays like it. any help appreciated.