Case fan

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Case fan

Postby Norman Castle » Sat Jun 20, 2015 2:41 pm

My first attempt at building a computer.

My case has two fans. One is on top, which draws its power from the front panel. It works fine.

The other is on the side and needs to be plugged into the motherboard. It has a 2-pin connector

My motherboard is a GA-F2A88X-D3H. It has, as far as I can tell, three fan headers. One is 3-pin, the other two are 4-pin.

See picture.

http://s9.postimg.org/i816h55dr/8747_big.jpg


Where do I connect my 2-pin fan?
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Re: Case fan

Postby Karlsweldt » Sat Jun 20, 2015 3:46 pm

The fan headers on a motherboard follow a 'standard', be it two wires, three wires or four. Look for a small pointer or the #1 print at the header, if concerned about polarity with some connections. But the header does have a bit of plastic standing on one side, to mate with a key on the fan plug.
http://www.allpinouts.org/index.php/Mot ... _Connector
Ensure that the CPU fan is connected to its dedicated header, as the BIOS monitors its speed.
It is best to have case fans feed directly from the PSU, less current draw through motherboard traces. Adapters are readily available and not expensive.
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