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Author Topic: 3 pin connection on cpu fan and 4 pin connection on MB  (Read 804 times)

Offline Getback

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3 pin connection on cpu fan and 4 pin connection on MB
« on: November 02, 2011, 05:10:44 PM »
My CPU fan went bad so I went to the store and purchased a new fan but it has a 3 pin connector and my cpu_fan connection on the MB is a 4 pin. Can I connect that to the system fan pin? Any advice is appreciated.
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Offline Chalenge

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #1 on: November 02, 2011, 05:19:47 PM »
You can hook it up to the four pin. The fourth pin is for variable speed.

EDIT: If there is no fan hooked up to the CPU fan header then the MB wont boot.
« Last Edit: November 02, 2011, 05:25:37 PM by Chalenge »
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Offline ebfd11

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #2 on: November 02, 2011, 05:41:21 PM »
i dont have a single fan hooked to my mb at all and my comp boots up.
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Offline Getback

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #3 on: November 02, 2011, 05:49:53 PM »
Quote from: Chalenge on November 02, 2011, 05:19:47 PM
You can hook it up to the four pin. The fourth pin is for variable speed.

EDIT: If there is no fan hooked up to the CPU fan header then the MB wont boot.

Thanks Challenge! I tested the connection and the 3 pin fit right into. I thought the 4th pin was for variable but I just had to be sure.
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Offline Getback

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #4 on: November 02, 2011, 06:10:05 PM »
I can't seem to secure the cpu cooler to the mainboard. Those plastic pins do not want to go in. Any suggestions?
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Offline guncrasher

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #5 on: November 02, 2011, 08:51:54 PM »
Don't buy a push pin fan.  But if you do push harder and pray.

Semp
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Offline Getback

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #6 on: November 02, 2011, 10:20:43 PM »
Quote from: guncrasher on November 02, 2011, 08:51:54 PM
Don't buy a push pin fan.  But if you do push harder and pray.

Semp


I hear ya, what fan can I get?
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Offline Chalenge

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #7 on: November 02, 2011, 10:23:10 PM »
Quote from: ebfd11 on November 02, 2011, 05:41:21 PM
i dont have a single fan hooked to my mb at all and my comp boots up.

Sorry you are correct. If the fan fails the MB should sense it and refuse to boot.

@Getback: What socket are you using?
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Offline guncrasher

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #8 on: November 03, 2011, 02:01:19 AM »
this is what I have, expensive but best i ever have.  ok I have only used two cpu fans, but this one is great  :D.


http://www.newegg.com/Product/Product.aspx?Item=N82E16835242001  works on all types of cpus.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103060

or I heard these ones are some of the ones used by players here and are happy.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835186134

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065

and dont forget this or something similar

http://www.newegg.com/Product/Product.aspx?Item=N82E16835100007

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103057

semp
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Offline Getback

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #9 on: November 03, 2011, 05:52:52 AM »
Quote from: guncrasher on November 03, 2011, 02:01:19 AM
this is what I have, expensive but best i ever have.  ok I have only used two cpu fans, but this one is great  :D.


http://www.newegg.com/Product/Product.aspx?Item=N82E16835242001  works on all types of cpus.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103060

or I heard these ones are some of the ones used by players here and are happy.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835186134

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065

and dont forget this or something similar

http://www.newegg.com/Product/Product.aspx?Item=N82E16835100007

http://www.newegg.com/Product/Product.aspx?Item=N82E16835103057

semp

Thank you Semp!!

Just ordered the artic cooler.
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Offline ebfd11

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #10 on: November 03, 2011, 10:40:08 AM »
I was gonna suggest this

http://www.newegg.com/Product/Product.aspx?Item=N82E16835233011

But I am a day late and a dollar short. LOL
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Offline Getback

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #11 on: November 03, 2011, 06:52:37 PM »
Quote from: ebfd11 on November 03, 2011, 10:40:08 AM
I was gonna suggest this

http://www.newegg.com/Product/Product.aspx?Item=N82E16835233011

But I am a day late and a dollar short. LOL

that's beautiful! I'll keep it in mind for my next build.
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Offline guncrasher

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #12 on: November 03, 2011, 07:02:46 PM »
Quote from: Getback on November 03, 2011, 06:52:37 PM
that's beautiful! I'll keep it in mind for my next build.

Thats for older sockets.

Semp
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Offline Getback

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #13 on: November 03, 2011, 07:34:46 PM »
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Offline ebfd11

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Re: 3 pin connection on cpu fan and 4 pin connection on MB
« Reply #14 on: November 04, 2011, 09:08:22 AM »
semp it covers these type of sockets

Socket 478/754/939/940/LGA775/AM2/AM3

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