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Case fans question

Tags:
  • Cases
  • slot
  • fans
  • molex
  • Components
Last response: in Components
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February 13, 2014 6:25:47 PM

Getting an NZXT Source 210 Elite, and as far as I know both fans are 4 pin molex. I'm going to have a CX500 PSU, do you plug the fans into the wire then plug the main wire into the CHA_FAN slot? My motherboard only has one slot, so is this for using multiple fans on one slot?

Picture: http://www.nix.ru/autocatalog/power_supply_corsair/1105...

Thanks, I just wanted to be sure.

More about : case fans question

February 13, 2014 6:33:27 PM

You can plug it in to the 3-pin slot on a motherboard if you don't have one it should come with this.

4-pin allows you to control the fan RPM, while 3-pin runs at full speed
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February 13, 2014 6:43:09 PM

dashboy1998 said:
You can plug it in to the 3-pin slot on a motherboard if you don't have one it should come with this.

4-pin allows you to control the fan RPM, while 3-pin runs at full speed


What I'm asking is, the CX500 states it has 4 peripheral connectors. In the picture, there's 4 with a 5th one. It looks to me as if you plug in your fans then that first connector goes into the 4 pin slot on the motherboard?
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February 13, 2014 6:50:34 PM

ah92 said:
dashboy1998 said:
You can plug it in to the 3-pin slot on a motherboard if you don't have one it should come with this.

4-pin allows you to control the fan RPM, while 3-pin runs at full speed


What I'm asking is, the CX500 states it has 4 peripheral connectors. In the picture, there's 4 with a 5th one. It looks to me as if you plug in your fans then that first connector goes into the 4 pin slot on the motherboard?

That 5th one is for a Floppy disk drive.
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February 13, 2014 6:57:03 PM

dashboy1998 said:
ah92 said:
dashboy1998 said:
You can plug it in to the 3-pin slot on a motherboard if you don't have one it should come with this.

4-pin allows you to control the fan RPM, while 3-pin runs at full speed


What I'm asking is, the CX500 states it has 4 peripheral connectors. In the picture, there's 4 with a 5th one. It looks to me as if you plug in your fans then that first connector goes into the 4 pin slot on the motherboard?

That 5th one is for a Floppy disk drive.


I don't see a 3 pin slot on the motherboard. so it looks like I'm going to have to plug the fans into the PSU and leave it. Is there a two way to one molex adapter that I can plug into the CHA_FAN slot for both fans? Or should I just stick with hooking them to the PSU instead? Any drawbacks from this? Aside from not being auto controlled.
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February 13, 2014 7:01:51 PM

dashboy1998 said:
ah92 said:
dashboy1998 said:
You can plug it in to the 3-pin slot on a motherboard if you don't have one it should come with this.

4-pin allows you to control the fan RPM, while 3-pin runs at full speed


What I'm asking is, the CX500 states it has 4 peripheral connectors. In the picture, there's 4 with a 5th one. It looks to me as if you plug in your fans then that first connector goes into the 4 pin slot on the motherboard?

That 5th one is for a Floppy disk drive.


Okay so the 120mm fan is 3 pin and the 140mm fan is a molex. So, can I plug the 3 pin into the PWR-fan slot and then the molex into the CHA_FAN slot?
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February 13, 2014 7:15:23 PM

You could get this: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
But to quote Jsrudd from this post http://www.tomshardware.com/forum/316374-30-using-split...
Jsrudd said:
One problem you might run into is that sometime Y splitters for PWM fans will carry the RPM reading of both fans. The motherboard will not know what to do with this information and so controlling the fans will not work effectively. You can avoid this by clipping the wire that carries RPM information on one of the fans.

There is really no harm is testing the Y splitter to see if they will work. I've got three fans hooked to one molex and they all run fine (I realize this is different than the motherboard). Look in your motherboard manual for the amount of power the headers will output and then look up the amount of power your fans need. You will have to do a little bit of conversion with watts, amps, and volts though.

Instead of cutting a wire you could use this: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Both options are the same as using motherboard and PSU, a 3rd thing you could do is get a fan controller.
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February 13, 2014 7:26:34 PM

I think he's in russia.
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February 13, 2014 7:29:58 PM

SR-71 Blackbird said:
I think he's in russia.


Yeah .ru
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February 13, 2014 7:31:18 PM

SR-71 Blackbird said:
I think he's in russia.


Me? It's just my first build and I'm trying to be sure both case fans will run fine.

Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

As I said, I'm getting a CX500 PSU and the fans are a 3 pin 120mm and 4 pin 140mm.
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February 13, 2014 7:36:40 PM

Just some info , the CX500 is a poor power supply.
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February 13, 2014 8:02:10 PM


16 is a 4-pin fan connector and 2 is 3-pin it looks
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February 13, 2014 8:17:08 PM

SR-71 Blackbird said:
Just some info , the CX500 is a poor power supply.


dashboy1998 said:

16 is a 4-pin fan connector and 2 is 3-pin it looks


Yeah but the 3 pin is for PWR_FAN and from what I know that's for a PSU fan, think I'm going to go for $10 more and get a Gigabyte B85 motherboard instead, which I'm pretty sure I can plug that 3 pin into a 4 pin slot. Thanks for your help though.
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