I am soon building my first computer and the case I have chosen has 2 installed fans on it and I am purchasing another 2 fans also. I want to know where each of these plug into (motherboard or PSU). I heard that the two pre-installed fans go into the PSU, as these have switches that allow you to change the speed on them etc, and then the 2 I'm purchasing separately go into the motherboard where from there, I can use a software to control the fan speed etc. is this correct?
Case fans - Where to plug in?
- Thread starter Rtoder209
- Start date
Solution
Hello man
Honorable
- Aug 11, 2013
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If the case fans you ordered are PWM, you can control the speed using the BIOS or a program like Speed Fan. PWM fans have 4 wires, one black, one red, one yellow, one blue. If they are not PWM you will need a fan controller with a resistor to lower the voltage, thereby slowing them.
My motherboard is the MSI G45 Z87 and my PSU is the Corsair 750M. Where do the fans go please? Will I be able to control the pre installed ones by the switches on the Fractual Design Define R4 by plugging them into the PSU, and then the ones I buy separate I will be able to control IF the mobo supports it. If not, they will just stay on, correct?
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