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Old 06-29-2009, 07:39 PM   #1
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Default What is this for?

On my new board there is a 4 pin power connector and I am trying to figure out exactly what it is for.
My mobo is an ECS A790GXM-AD3
It is not mentioned in the manual, and I don't have my CPU yet so I'm kinda clueless. My current theory is that its for a fan so I can control it.

Here's a pic



It's right next to a 3 pin, so thats why i think its for a fan.

I have the AM2+ version of this board and its not on that one.
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Old 06-29-2009, 07:41 PM   #2
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Default Re: What is this for?

where is it in that picture....?
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Old 06-29-2009, 07:42 PM   #3
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Default Re: What is this for?

Hold on.
I'll post the whole pic in a sec.

Here it is:

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Old 06-29-2009, 07:43 PM   #4
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Default Re: What is this for?

It's an auxiliary power connector for running in Crossfire. It supplies the motherboard with more power to help with running a multiple video card setup.
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Old 06-29-2009, 07:43 PM   #5
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Default Re: What is this for?

The white connector is for power.

[edit]

Darn it AR! You alway slip in just before me! I'll beat you some day!
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Old 06-29-2009, 07:44 PM   #6
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Default Re: What is this for?

That's my guess, too - that it's used to power the fan without needing an extra 4-pin on the PSU - and to monitor it.

EDIT: Oh, fail on my behalf.
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Old 06-29-2009, 07:46 PM   #7
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Default Re: What is this for?

Oh OK.
Glad I asked as I will be needing it.
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