What are safe temperature levels in a mid 2010 Mac Mini? We don't have air conditioning in the space where the computer resides but do have a small (about 8 inch diameter) fan blowing air across the top of the case. Last night before I shut down before going to bed I checked temps with iStat Pro and the cpu was at 160 F and cpu heatsink was at 178 F. The power supply was in the 140-150 F range (but then again it's usually around 130 F anyways). Fan speed as reported by iStat last night was about 2500 RPM. Ambient air temperature by a thermometer 2 feet from the Mini's case was 90F. A couple of questions: how accurate are the numbers reported by iStat and from what I wrote are these numbers that should cause concern? The Mini is stock except for 8 gig of ram from Crucial. I usually start the computer up in the AM when I get up and shut it down before bedtime with intermittent use during the day. In between I have it in Sleep mode.Last night when I checked the temps I had used it to do a final check of email and also check the weather from a site which has some Flash animation. I know Flash can run the temps up but still - should I worry about the temp numbers?