i assume you want to do this so the mobo can adjust the speed based on temp. all the mobo does is change the power (amps or voltage, i dunno?) to the fan. if the fans are all the same, it's probably safe enough to run them together off one power source. you will be able to connect the feedback wire from one though. i'd expect they would all turn quite slowly. check your mobo specs, it should list a max output wattage/ampage.
my antec power supply has specific case fan power cables, which speed up when the power supply temperature goes up. on these two cables i've got 7 12mm case fans in a "flyscreen" case, slowly rolling around. it's no noisier than most 2 case fan systems, but completely stupid, not to mention dusty.
Last edited by fasad; 30-08-2006 at 11:33 PM.
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