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Case fans and Motherboard?

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May 19, 2010 5:19:02 PM

I received my MB yesterday, and I was reading the manual. I noticed there is 3 slot on the MB to plug Case fans on it.

1. What are these slot use for? I guess it is to control the fan speed to adjust depending on the heat?
2. What if I want to buy a 4th case fan, How can I deal with the fact I can only plug 3 on the board?

More about : case fans motherboard

May 19, 2010 5:30:12 PM

kontrol said:
I received my MB yesterday, and I was reading the manual. I noticed there is 3 slot on the MB to plug Case fans on it.

1. What are these slot use for? I guess it is to control the fan speed to adjust depending on the heat?
2. What if I want to buy a 4th case fan, How can I deal with the fact I can only plug 3 on the board?

well you will more than likely run into the same issue i found you wont be able to use them as most fans now come with 4pin molex conector not the old 3 pin. Unless ofc you want to use adaptors cloging up your case with more wires. A better question may have been why do they still put them on the mobo.
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May 19, 2010 5:31:59 PM

But I'm not forced to use them right? They will just never go faster or slower based on heat?
May 19, 2010 10:04:24 PM

no your not forced to use them i have 4 on my XFX 790i ultra and i dont use one. but saying that all my fans have seperate 3 stage speed settings.
a c 135 ) Power supply
a c 209 V Motherboard
May 20, 2010 1:43:44 AM

You can gang multiple fans on one header using a cable splitter as long as you don't exceed the amperage rating of the header.....if done properly, the MoBo should be able to control fan speed.

If ya wanna go different way the NZXT Sentry 2 can handle any fan you throw at it.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
a b ) Power supply
a b V Motherboard
May 20, 2010 1:53:19 AM

kontrol said:
But I'm not forced to use them right? They will just never go faster or slower based on heat?


Only one you are pretty much forced to use is the CPU fan controller (the MOBO will give you an error if nothing is hooked up to it usually - though you can get around it if needed) - other that it is optional and will not effect anything (other than as stated for controlling fan speed.)
May 20, 2010 2:16:10 AM

Yeh sorry jd is correct i didnt mention the cpu fan and should have
May 20, 2010 2:42:53 AM

1- they can give power to the fans, I have 140mm fans getting power only from them. They allow you to control fan speed from your OS with specific programs.

Depending on the way you want to manage cables inside the case you can use them or not.
May 20, 2010 12:10:07 PM

Cool guys, that answer my question. Thank :) 
!