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3 and 4 pin fans into one 4pin socket

post #1 of 12
Thread Starter 

My Hyper 212+ has two fans on it, both connected to the mobo but one fan is 4 pin and one is 3 pin so the 4 pin is connected to the CPU fan socket, and the other is connected to a seperate mobo powered socket. What I want is to control both fans through the CPU fan socket in order to run both at the same speed and free up another slot on the mobo. I know there are 3 pin fan splitters (

) which would be perfect if both fans were 3 pins, but they're not so I was wondering if there are splitters that can take both 3 and 4 pins whilst going into a 4 pin socket giving 4 pin functionality. I know that one listed would do the job, but what functionality would I lose if I turned the 4 pin down to 3, if any? If I wouln't lose any, then that is my splitter! cheers.
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post #2 of 12
Just get a PWM (4 pin) splitter and plug them both into it
post #3 of 12
Thread Starter 
Quote:
Originally Posted by tw33k View Post
Just get a PWM (4 pin) splitter and plug them both into it
Costs 4 times as much though. What does a 4 pin connector give me that a 3 pin doesn't?
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post #4 of 12
How can you plug a 4 pin fan into a 3 pin splitter (without losing PWM function)?
post #5 of 12
Thread Starter 
Quote:
Originally Posted by tw33k View Post
How can you plug a 4 pin fan into a 3 pin splitter (without a lot of rooting around)?
That one doesn't have any casing around the 3 pins, so I could just slot it in. I think i'll just spend a bit more and get the PWM splitter so to avoid any problems. Thanks
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post #6 of 12
you won't have any problems if you just replace the 4 pin on the fan with a 3 pin. You won't have pwn functionality but it'll be cheaper. All you have to do is buy the 3pin tip. That extra pin doesn't supply power so you'll have no issues.
 
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post #7 of 12
Thread Starter 

I found this one for cheaper keeping the PWM functionality. It'll work right?


Edit; I still don't understand the PWM functionality, but I will still be able to control the speed of the 3 pin fan in line with the 4 pin yes? I don't want it running at full speed just because its plugged into a 4 pin socket! I want both running at the same speed.
Edited by neonraver - 10/17/11 at 5:06am
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post #8 of 12
Yep..it will
post #9 of 12
Thread Starter 
OK, i've read that in the BIOS you would have to set the 4 pin socket to either use PWM or voltage control. If I pick voltage control I would be able to control both fans but lose the PWM functionality. If I pick PWM control then I would be able to control the 4 pin using PWM, but the other fan would run at 100%. Now, I need a new fan anyway so I was thinking of getting another CPU fan with PWM but I am not really sure what good fans there are out there. Any ideas?
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Old hand
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post #10 of 12
Quote:
Originally Posted by neonraver View Post
OK, i've read that in the BIOS you would have to set the 4 pin socket to either use PWM or voltage control. If I pick voltage control I would be able to control both fans but lose the PWM functionality. If I pick PWM control then I would be able to control the 4 pin using PWM, but the other fan would run at 100%. Now, I need a new fan anyway so I was thinking of getting another CPU fan with PWM but I am not really sure what good fans there are out there. Any ideas?
Just get another fan which is the same one as your PWN fan, which is a Blademaster if I'm not wrong.
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