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Purpose for the PWR_FAN plug on a mb

10341 Views 2 Replies 3 Participants Last post by gotrootdude, Jan 15, 2007

tjesh

Discussion Starter · Jan 15, 2007

I just acquired an Asus board with a plug marked "PWR_FAN"
I just acquired an Antec Trio 650 PS that has a small matching socket with black & blue wires.
This socket has no markings on it that I can see.

Of course the Antec manual doesn't even acknowledge the existence of the latter, and the Asus manual doesn't specify any particular purpose for the former.

Since I don't fathom the logic where the PS fan takes back input from the mb that it is contemporaneously powering, my question is: Should I plug the damn line from the PS into the PWR_FAN pins on the board? tia

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crjdriver

· #2 · Jan 15, 2007

You should have a multiple fan connectors on the board. One will be labeled cpu fan or perhaps just by number ie fan1, etc. Check your manual as to which one you connect the cpu fan to.
The one you describe is most likely for a power supply fan to read rpm. You can connect it or not it really does not matter.

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