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How do I plug a 4-pin fan into a 3-pin plug?

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February 24, 2011 9:29:23 PM

I bought a CPU heatsink and replaced both fans so I could have blue LED ones... And I have the one cooling fan with a 4-pin plug now and I want to plug it into a 3-pin to molex plug then plug it into a molex plug from my power supply and use it as a side panel fan... So how do I do this? I don't mind modifying if I have to.. So heres the order:

4-pin fan plugs into 3-pin cable, that converts it into molex then. plugs into power supply.

How do I get this to work? What colors go where?

More about : plug pin fan pin plug

a b K Overclocking
February 24, 2011 9:43:35 PM

MagnetsNextToMotherboard said:
I bought a CPU heatsink and replaced both fans so I could have blue LED ones... And I have the one cooling fan with a 4-pin plug now and I want to plug it into a 3-pin to molex plug then plug it into a molex plug from my power supply and use it as a side panel fan... So how do I do this? I don't mind modifying if I have to.. So heres the order:

4-pin fan plugs into 3-pin cable, that converts it into molex then. plugs into power supply.

How do I get this to work? What colors go where?
You're trying to go from 4-pin to 3-pin to 4-pin again? You never need to do that. If your fan is 4-pin PWM, you can plug a 3-pin to "Molex" adapter to it, since 3-pin and 4-pin PWM are interchangeable.
a b ) Power supply
a b K Overclocking
February 24, 2011 11:09:29 PM

AGEED, there is an adapter.

Make sure that the fan control actually works (BIOS). My motherboard was set to AUTO but fan control didn't work until I chose "VOLTAGE."
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February 25, 2011 12:44:54 AM

I don't think you guys understand... =/ Ok, there are adapters but I don't want to buy one when I have a 3-pin to molex (Yeah I'm basically trying to go from 4-pin to 3-pin back to 4-pin) I want to use a 3-pin to molex adapter to plug the CPU fan in and put it on my side panel, and I can't just plug it into the CPU fan plug because the cord doesn't reach and it would make my cable management worse and I don't want to do that, even though its a dinky thin little cord.. It still looks ugly with a case window that I'm installing later on... My problem is I don't know exactly how I should plug it in I don't want to plug it in the wrong way so it either goes like this:

|||| |||| Blue, Green, Yellow, Black. So does it matter how I put it in... ?
||| or: ||| I'll tell you the colors..
February 25, 2011 12:50:39 AM

Sorry that diagram failed..

It would go like this the colors from left to right........||||....||||....
...................................................................................|||....|||.....
February 25, 2011 12:58:18 AM

Nevermind.. I should've looked at it closer... I made a moron of myself hahahahaha.... I've only built one computer before and I'm upgrading it now so I don't have a lot of experience.
!