I am running Windows 7 and on both the 2010 and the 2011 Mac Mini I find that the fan kicks in at a higher temperature than under OS X. This makes the situation worse for those running Windows. Initially I drilled a series of 1/8" holes in the bottom cover plate in the area above the grill surrounding the WiFi antenna. I've have enlarged these now to 11/64" but this makes the placement of some rubber feet critical since the bottom flexes a lot more which was not the case earlier on. I get the impression that at 2300 rpm the front of the Mac Mini is cooler than at the back. This leads me to believe that the body plays a large part in the (passive part of the) cooling. The 2010 Mac mini uses approx 8 watts at idle and the 2011 i5-2530M about 15 watts and imho the cooling system is not sufficient enough (at idling at least) for the 2011 mini. Something must be wrong with the fan control as well under BootCamp. I am now seriously considering adding two heatsinks on the outside of the 2011 Mac Mini ( http://www.aa...

Search on macrumors for my posts: ( primarily http://forums.macrumors.com/showthread.p... ) Drilling the ventilation holes hardly made a difference at lower speed however I am under the impression that it makes a difference at higher speeds. (used to be involved in electronics and have a drill template to create evenly spaced holes) Since the 2011 has more often higher fan speeds I consider air filtering a welcome addition (see my other posts on this subject). With overhead lighting (ceiling lights) the filter is not even noticeable. Less dirt buildup internally = better cooling. No dismanteling = no warranty invalidation. I've also a post on references to safe operating temperatures and running this machine above 80C is not advisable, it will impact reliability. ( http://forums.macrumors.com/showthread.p... ) Increasing the idle fan speed to 2200 rpm gives it about the same idle temperature as the 2010 mini. I am only running Windows 7 (I know) and am using MacFan0_65 utility to set the fan speed after start...