Solved CPU Fan Pin Compatibility Tags: Homebuilt CPUs Compatibility Systems Product Last response: April 21, 2012 8:04 PM in Systems Share MrKopaka1016 April 21, 2012 4:38:01 PM Hello people of the System forums. So I have been wanting to get a new CPU fan to replace my stock (it is loud loud loud) and i found one to seem to be the one. http://www.newegg.com/Product/Product.aspx?Item=N82E168... How ever i have run into a conflict, I checked my mother board has a 4 pin CPU fan connecter and not a 3 pin like the fan I have found requires. So my question is will it fit with one pin hanging lose. My Specs are in the signature. Thank You! More about : cpu fan pin compatibility Best solution treefrog07 a b B Homebuilt system a b à CPUs April 21, 2012 4:40:51 PM Share Yes, the fan connector will fit over the the 4-pin connector on the motherboard; one pin on the board will be un-connected. MrKopaka1016 April 21, 2012 4:58:11 PM Best answer selected by MrKopaka1016. Can't find your answer ? Ask ! Get the answer rockhard April 21, 2012 8:04:42 PM To further explain: 3pin connector pinouts are ground, +12V and tachometer. 4pin connector adds a pin for speed control (pulse width modulation) Also to note; you can still control your fan speed on a 3pin connector. It can be controlled with adjusting voltages if your bios supports it. Can't find your answer ? Ask ! Publish Related resources P7P55D Death - By 3 Pin CPU Fan ??? - Help Forum Connecting a 4 pin CPU Fan to a Fan Controller Forum 4 pin case fan to 3 pin controller Forum Fans, PWM, 3 Pin , Fan Controller Forum 3 pin vs 4 pin cpu heatsink/ fan connection Forum Replacing 4 pin CPU cooler stock fan with 3 pin fan Forum cpu fan 4 pin connecter? Forum Can you plug a 3 pin cpu fan connector onto a 4 pin mb? Forum Can't connect 4 pin fan to 3 pin cpu header 'cause of stupid capacitor. Forum 4 pin case fan Forum Hyper 212 Plus Push/Pull, But Fan is 4- Pin ? Forum Am3+ cpu fan compatibility Forum Is Socket AM2 compatible for 939 pin cpu ? Forum 4- pin cpu fan connector Forum Possible wiring of 4 pin fan /heatsink to Dell (proprietary 5 pin ) motherboard po Forum New Sub $700 build Forum [Solved] Just finished building my first CPU....only have one issue... Forum CPU overheating help Forum [Solved] Fan Sizes Forum New build but re-using several old parts. help + compatibility. Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !