Can I use 2 fan header y adapters to run 3 fans and 1 cpu cooler on my motherboard(MSI 760GM-P21)

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DRagor
4-pin fans are PWM controlled, 3-pin fans are voltage controlled. PWM allows more fine speed control and also lower speeds - in fact PWM fan can be stopped to zero speed, while 3-pin fan cannot. On new boards it does not matter really, but your board is older, so it has its limits. CPU header is 4-pin, so you can connect 4-pin fans to it, but the other header is just 3-pin, so you can only connect 3-pin fans there (actually you can, but such fan would run at full speed all time without any control).
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ben4594

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Dec 29, 2017
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I dont really understand the difference between 3 and 4 pin?
wich should i use
 
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DRagor

DRagor

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Jan 23, 2017
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4-pin fans are PWM controlled, 3-pin fans are voltage controlled. PWM allows more fine speed control and also lower speeds - in fact PWM fan can be stopped to zero speed, while 3-pin fan cannot. On new boards it does not matter really, but your board is older, so it has its limits. CPU header is 4-pin, so you can connect 4-pin fans to it, but the other header is just 3-pin, so you can only connect 3-pin fans there (actually you can, but such fan would run at full speed all time without any control).
 
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