....but while two of the PSU's are cheapo ones, but I've cut all the molex connectors and directly wired them in. The wires don't even get warm. Maybe its a conflict, but why do they restart all the time? All 3 blades do it, and they are each on different PSU's... hmm.
I messed around with PC power supplies, found they had inconsistent behavior and were way too complex. Here is the solution, $27 delivered, gives 30A clean 12V, no other voltages, no hassles. The screw down block even has 3 screws for + and 3 screws for ground (labeled V-).
You get these babies, some 16 or 14 gauge stranded, use one power wire and one ground wire per blade.
I have three of these running 9 blades.
http://www.ebay.com/itm/261198916470?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649By the way I've got a lab power supply that tells me the draw from these blades at LOW speed is 4.5-5.5 A, less than what's been claimed...