I recently discovered that my two Sunon 80mm/36cfm fans are turning over at just under 5,000rpm in my system. ( Abit SA6R board with PIII 1GHz cpu/256Megs of Crucial PC133 CAS2 RAM) All my temps are nice and low...cpu is well under 30C and board and ambient case temps are also sub-30C. The only problem is that whenI checked the specs on these Sunon fans they are listed as 2,900rpm fans. Can one of you gurus tell me if it's normal for the fans to spin faster than their manufacturers rate them? These are 3 pin -mobo connector fans and they are being monitored by both 'Hardware Doctor' and ' SiSoft Sandra'.