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Fan Case speed control

post #1 of 12
Thread Starter 
Hi

I just put 3 new XILANCE 120mm REDWING PWR case fans in my case. The problem is that my MB(Asus P8P67 Deluxe) had only 1x PWR CHA_FAN connector and 1x 3pin CHA_FAN left and these two can regulate speeds. So i am left with 1 fan that i had to connect to PWR_FAN which doesnt support monitoring of speed and this fan is working at full power all the time which causes way too much noise that i dont want.

My questions is are there any good solutions on how to avoid this ? I know i can get a fan controller or put it on 7V, is there any other good suggestions that I can use in this example?

Thanks
post #2 of 12
PWM fan splitters are available, some are powered straight from the PSU to avoid overloading the header with the speed controlled from the mobo - prolly your best bet to have all fans controlled by the mobo.

http://www.google.co.uk/products/cat...=1347&bih=893#
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post #3 of 12
Thread Starter 
So if I understand this correctly, with this thing i can connect all of my 3 new fans (4pin) into 1 PWR connector on motherboard and their speed will be regulated by MB just like it is now on PWR and cha connector?

How will this work with fan XPERT ?
Edited by horsovski - 5/18/11 at 10:20am
post #4 of 12
Quote:
Originally Posted by horsovski View Post
So if I understand this correctly, with this thing i can connect all of my 3 new fans (4pin) into 1 PWR connector on motherboard and their speed will be regulated by MB just like it is now on PWR and cha connector?

How will this work with fan XPERT ?
HOLD ON to that. I believe each motherboard header can only take 1AMP of power so don't go start chaining on your fans. Check your fans and see how much power it needs and add them together and make sure they don't go over what your motherboard header fan is rated at or you'll burn it.

4 pins = pwm = meaning it can be controlled by the motherboard itself.
3 pins = non-PWM = cannot be controlled by motherboard automatically but fan controllers can.

You said you only have 1 fan left to put on right? You can put it on the regular 3 pin header and it should run on highest setting, if you're not concerned with the noise that is.

Hope this helped.
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post #5 of 12
This splitter takes power for fans from a Molex connector, only PWM speed signal is taken from motherboard header so you can use any fans that your PSU is capable of powering. http://www.akasa.com.tw/update.php?t...model=AK-CB002 . You can also daisychain those splitters if three fans is not enough, I for example have six Akasa Viper fans connected to Cpu fan header on one of my systems.
Edited by mm67 - 5/18/11 at 12:16pm
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post #6 of 12
Quote:
Originally Posted by horsovski View Post
So if I understand this correctly, with this thing i can connect all of my 3 new fans (4pin) into 1 PWR connector on motherboard and their speed will be regulated by MB just like it is now on PWR and cha connector?

How will this work with fan XPERT ?
Yes, Fan XPERT/your mobo will believe there is 1 fan attached and run as they would.
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post #7 of 12
Thread Starter 
cool, ordered the splitter.
post #8 of 12
Thread Starter 
Quote:
Originally Posted by Darren9 View Post
Yes, Fan XPERT/your mobo will believe there is 1 fan attached and run as they would.
I followed your advice, ordered this(had to pay 3x original price for shipping in my country) to see that this doesnt work at all, no matter what and where i plugin the cables, it runs at full speed all the time and its not controlled.

Kinda dissapointed, is there anything I can do or I could be doing something wrong ? MB is Asus p8p67 Deluxe
Edited by horsovski - 5/24/11 at 5:10am
post #9 of 12
Where did you connect the PWM splitter, probably only cpu fan header supports PWM signal.
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post #10 of 12
Thread Starter 
Yeah just figured out that it only works on CPU_FAN but does this means that cpu fan and chase fan that is connected through same channel, will run at same speed ?
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