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How do I hook up my case fans?

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  • Inwin
  • Cases
  • Systems
Last response: in Systems
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April 3, 2014 5:48:33 PM

I've installed everything into my InWin GT1, but I don't know how to get the case fans hooked up. I'm left with two female 4-pins that I don't know what to do with. They have red, yellow, and black cabling.

Please help.

More about : hook case fans

April 3, 2014 5:54:58 PM

There are plugs on the motherboard for case and CPU fans.
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April 3, 2014 6:06:28 PM

Look on the motherboard. There will be several places usually where fans will connect. One is usually next to the cpu_fan connection, 1-2 on lower left of the CPU socket area, sometimes 1-2 on the right side abot 1/2 way down, and on the bottom usually to the right of center. They are labeled sys_fan1,2,3 etc or case_fan1,2... On the 1 at lower socket is sometimes labled CPU_opt or CPU_aux, this connection is mainly not controllable and will run a fan at 12v max speed constantly. Hope that helps.
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April 3, 2014 6:07:09 PM

Freakboi_pa said:
There are plugs on the motherboard for case and CPU fans.


Is there a plug for a big, white plastic four pin though? I can't seem to fine any.
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April 3, 2014 6:08:53 PM

you mean a Molex connector? If so, they plug into one of the power supply cables. You may need to get an adapter for SATA to molex
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April 3, 2014 6:09:54 PM

You can power them from your power supply with the molex.
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April 3, 2014 6:12:37 PM

Karadjgne said:
Look on the motherboard. There will be several places usually where fans will connect. One is usually next to the cpu_fan connection, 1-2 on lower left of the CPU socket area, sometimes 1-2 on the right side abot 1/2 way down, and on the bottom usually to the right of center. They are labeled sys_fan1,2,3 etc or case_fan1,2... On the 1 at lower socket is sometimes labled CPU_opt or CPU_aux, this connection is mainly not controllable and will run a fan at 12v max speed constantly. Hope that helps.


I see those plugs, but my fan things look like this:

But instead of having the tiny thing at the end, they splinter off and reconnect male-female twice, resulting in two white plastic four pin females left.
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April 3, 2014 6:23:37 PM

Freakboi_pa said:
you mean a Molex connector? If so, they plug into one of the power supply cables. You may need to get an adapter for SATA to molex


SR-71 Blackbird said:
You can power them from your power supply with the molex.


I have a power cable with an end that can connect to one molex connector but not the other. I must be doing something wrong.
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Best solution

April 3, 2014 7:09:12 PM

Your case has a fan controller at the front-top. The case fans should connect there, as well as a power cable from the psu. The adapters are for additional fans that may have differing connectors and need that molex connection.
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