Combining two 3pin fans on 1 3pin connection?

BeHappy · Feb 15, 2009

Im a complete noob when it comes to wiring. I just bought a fan controller and I need to know if there is any way of connecting two 3pin fans together on one header.

I took apart a laptop chillpad and removed the fans. I want to have them both at the same rpm and monitor them through my fan controller. Only problem is that I only have one header left open on my controller.

I saw this on ebay: http://cgi.ebay.com.sg/Twin-3-Pin-F...apter-IDE_W0QQcmdZViewItemQQitemZ370107653963.

Is there any way of doing this myself? I know that the yellow wire is the rpm sensor, red is power, and black is ground?

Any suggestions? Thanks in advance.

BeHappy · Feb 15, 2009

This is the fan controller I have: http://www.petrastechshop.com/5sckmaacmufu.html

And this is the chillpad I disected: http://www.newegg.com/Product/Product.aspx?Item=N82E16834999413

I know the fans draw about .21amps and the controller is rated at 1amp per channel.

Dermen · Feb 15, 2009

It is very simple if you can solder, you just pull the pins from the connector and solder the 2nd fans wires to the pins and reassemble the connector.

BeHappy · Feb 15, 2009

Success. Thanks.

zbo · Feb 15, 2009

Be careful about pullng at lot of watts from a motherboard header. Just in case you had any plans to do so.

phil178821 · Feb 15, 2009

BeHappy said:
Success. Thanks.

while soldering is ideal, simply twisting the wires together, sealing it with heat shrink, and crimping is more than enough..

BeHappy · Feb 15, 2009

phil178821 said:
while soldering is ideal, simply twisting the wires together, sealing it with heat shrink, and crimping is more than enough..

Exactly what I did. I dont have a soldering iron so i remembered my grandpa teaching me how to do this.

These fans are pretty small and don't draw all that much power. Each channel on my fan controller is rated at +12v. I could run 3 of these off each header if needed.

Thanks guys.

phil178821 · Feb 15, 2009

BeHappy said:
Exactly what I did. I dont have a soldering iron so i remembered my grandpa teaching me how to do this.

These fans are pretty small and don't draw all that much power. Each channel on my fan controller is rated at +12v. I could run 3 of these off each header if needed.

Thanks guys.

you want to look at how man watts each channel can handle.

ie. my sunbeam can do 20watts per channel.

each of my yates draw 0.3 amps.

12V * 0.3A = 3.6W

Thus I can safely place up to 5 fans per channel since 5*3.6 < 20W.

BeHappy · Feb 15, 2009

phil178821 said:
you want to look at how man watts each channel can handle.

ie. my sunbeam can do 20watts per channel.

each of my yates draw 0.3 amps.

12V * 0.3A = 3.6W

Thus I can safely place up to 5 fans per channel since 5*3.6 < 20W.

Man I love you guys! I learn so freaking much, its awesome.

My fans only draw about .021 amps each, so i'm more than fine. :thup:

phil178821 · Feb 15, 2009

BeHappy said:
Man I love you guys! I learn so freaking much, its awesome.

My fans only draw about .021 amps each, so i'm more than fine.

Glad to help.

Combining two 3pin fans on 1 3pin connection?

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