Solved Case Fan Questions Tags: Power Supplies Cases Fan Plugin Components Last response: June 25, 2012 12:42 AM in Components Share Daethz June 24, 2012 2:14:17 PM I just built my new computer the other day, each fan i have has a 3-pin connecter, 3 of my fans came with i think its called a molex plugin where it has 4 pin like things sticking out or the opposite. My Asus z77 Lk has 3 onboard fan controllers i beleive but they are 4 pins in a row, while the fans regular plugin only supports 3 pins. Can i buy an adapter to plug my fans directly into my motherboard? or should i buy another molex adapter to plug directly into the psu? More about : case fan questions DJDeCiBeL a c 76 ) Power supply June 24, 2012 2:22:20 PM No adapter needed. The 3 pin connectors will work on the 4 pin connections on the mobo without a problem. m 0 l Daethz June 24, 2012 2:25:16 PM Wouldn't even trying to plug one in damage the 4th pin on the mobo? m 0 l Related resources Can I use "CPU OPT" to power my top case fan? Additional fan questions inside... - Forum Corsair 500R Case Fan Questions - Forum Case fan questions! - Forum PSU cables won't fit in the case? & fan questions - Forum Questions About Installing New Case Fan - Forum Can't find your answer ? Ask ! Get the answer Best solution DJDeCiBeL a c 76 ) Power supply June 24, 2012 2:27:28 PM Nope. They way the connectors are made, they can only work one way, and you'll see that on the mobo. They're meant to be used with both 3 and 4 pin fans. Share Daethz June 24, 2012 2:58:09 PM I just plugged both my exhaust fans directly into the mobo, but the big fan is Red and at around 400 rpm in the bios, does red indicate a major issue? the fan only gets up to 800 rpm i beleive. m 0 l DJDeCiBeL a c 76 ) Power supply June 24, 2012 3:03:33 PM Just set it to a lower minimum in the BIOS. My guess is that it's set to something like 600 RPM. You can even turn off the alert completely, if you want. m 0 l Daethz June 24, 2012 3:13:47 PM Eh i just plugged the 200mm fan directly back into the power, the mobo was making it whine by changing its rpms constantly. But srsly, ty, now i have all my fans running successfully. m 0 l DJDeCiBeL a c 76 ) Power supply June 24, 2012 3:14:47 PM You're welcome. m 0 l Daethz June 25, 2012 12:42:26 AM Best answer selected by Daethz. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedEnermax Ostrog ECA3253-BR, Cooling questions, case fans? Forum SolvedControlling Fan Speeds / Case Fan Questions Forum SolvedBottom case fan & GPU fan question Forum SolvedFans, Corsair Link, and Case Management Questions... Forum SolvedQuestion about CM Storm Trooper case...Fan's behind mobo? Forum SolvedBest Case Choice (White) + Question about Heat Sink and Fan Forum SolvedCase Fans. Cooling. Case Fan Config. question. Forum SolvedQuestion about case fan speed and control Forum SolvedHow to connect all the case fans? (AKA the topic where I look really stupid by asking stupid questions) Forum Solved4-Pin Molex case fan upside down question Forum Case fan stupid questions.. Forum SolvedPSU mounting question. PC case designed for top mounted rear fan PSU, top fan PSU purchased. Forum Case pressure and fan questions Forum Solvedcase fan question Forum LOTS of questions case fans and motherboard fan headers Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !