Could someone please explain fan connectors?

Andrei-Florin Gogan · Dec 24, 2015

Hello guys

I have 3pin fans connected to my motherboard. Because they run at full speed all the time, I bought a fan controller. The NZXT Sentry Mix 2 says it has 4 pin connectors even though the wires have only 2 pins. I have connected my fans but it is making a terrible coil whine noise. So somebody suggested I should try 4 pin fans. Now here is the part I do not understand. The only 4 pin fans I can find to buy have either a 3 pin connection or a 4 pin Molex. I cannot connect a molex to my fan controller. Coul someone please illuminate me ?

petek480 · Dec 24, 2015

You only need the first two pins with that controller. The 3rd pin is used for rpm reading. The 4th pin is used for pwm. You dont need either of those with that controller.

Andrei-Florin Gogan · Dec 24, 2015

Yes but when I connect the 3 pin fans to this controller it is making a horrible coil whine noise even though the controller does control the fans with no problems. This is my 3rd fan controller swapped because of the same reason. Don't really want to go back into that store to swap it for the 4th time.......

petek480 · Dec 24, 2015

Look at this link:

http://www.overclock.net/t/1415440/fans-buzzing-on-nzxt-sentry-mix-fan-controller

Apparently that controller has a voltage issue with some fans causing them to make noises when you adjust the speed of them.

Andrei-Florin Gogan · Dec 24, 2015

my first controller was an Aerocool Toush E, it was making the same noise, and this NZXT is my 2nd try already.....

petek480 · Dec 24, 2015

What kind of fans do you have. The fans might have issues running at a lower voltage.

Andrei-Florin Gogan · Dec 24, 2015

I have got 2 Corsair AF120 for intake and 1 Aerocool 120mm for exhaust at the back. They are all brand new

petek480 · Dec 24, 2015

Do the fans make the noise when you have the controller set to full speed?

Andrei-Florin Gogan · Dec 24, 2015

Well that is the problem. The fans are not making any noise. The controller is making the coil whine noise.

petek480 · Dec 24, 2015

Oh... thats' odd. Well is it making the sounds when you have all the fans set to full speed or only when you start to lower the fan speeds?

Also does it make the noise if you have no fans connected to it?

Andrei-Florin Gogan · Dec 24, 2015

OH MY GOD I am so dumb. That's what you get if you act before actually thinking. Most likely all the fan controllers were working alright. It was something to do with the BIOS. So I got today the Phobya TPC fan controller and did the exact same noise. The thing is, when I start the computer, all the fans are spinning normally and it's making no noise for about 3-4 seconds. That is about the time all the BIOS content is loading so I thought it must be something inside the BIOS. I went in and saw nothing that might be the problem so I pressed "load optimized defaults" and restarted. It is now working perfectly and I can't hear anything at all. So it must have been something inside the BIOS.

Search

Could someone please explain fan connectors?

Andrei-Florin Gogan

Reputable

petek480

Reputable

Andrei-Florin Gogan

Reputable

petek480

Reputable

Andrei-Florin Gogan

Reputable

petek480

Reputable

Andrei-Florin Gogan

Reputable

petek480

Reputable

Andrei-Florin Gogan

Reputable

petek480

Reputable

Andrei-Florin Gogan

Reputable

TRENDING THREADS

Latest posts

Moderators online

Share this page