PC fan connectors

Franicelcha

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Oct 21, 2010
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Hi

Do all PC fans whether they come with the case or are purchased separately come with a 4 hole female connector ?

Also: Are all fan connectors on a motherboard 4 pins or 3 pins or could be both ?



Thank you
 
Solution
Many motherboards have 3 pin connectors still, they're RPM, Ground, and + voltage, they can be speed controlled through voltage. 4 pin have the same but a PWM pin that makes speed control better, some boards with 4 pin connectors can control 3 pin fans. many fans that come in cases just have a molex connector which you generally can't control from the motherboard at all, they're just on all the time, you need a fan controller if you want any kind of control for them.

So no, there is no kind of consistancy with fans right now...there's 3 pin, 4 pin, and molex, motherboards have 3 or 4 pin, molex plug directly into your PSU. Most lower to mid level Mobos have mostly 3 pin connectors except maybe the CPU connector will be 4 pin. High end...
Many motherboards have 3 pin connectors still, they're RPM, Ground, and + voltage, they can be speed controlled through voltage. 4 pin have the same but a PWM pin that makes speed control better, some boards with 4 pin connectors can control 3 pin fans. many fans that come in cases just have a molex connector which you generally can't control from the motherboard at all, they're just on all the time, you need a fan controller if you want any kind of control for them.

So no, there is no kind of consistancy with fans right now...there's 3 pin, 4 pin, and molex, motherboards have 3 or 4 pin, molex plug directly into your PSU. Most lower to mid level Mobos have mostly 3 pin connectors except maybe the CPU connector will be 4 pin. High end Mobo's are usually all 4 pin these days.
 
Solution