I just modded the stock fan on this Volcano 7 heatsink with a quiet Panaflo. I can't believe the difference...from 39dB to 21dB is amazing and best of all it takes about 5 mintues. My temps went up by about 4-5 degrees but definitely acceptable (41 idle & 44 load). I wonder if that temperature control sensor is going to cause me problems in the future? There's no way it could control the fan speed of a Panaflo L1A right???