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Will a 3-pin Power Connector work on a 4-pin fan header?

Last response: in Components
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October 2, 2010 2:50:42 PM

I have a question will a 3-pin Power Connector work on a 4-pin fan header or vice versa?

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a c 243 ) Power supply
October 2, 2010 2:52:54 PM

Yes, a 4 pin on a 3 pin header won't have PWM control though
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a b ) Power supply
October 2, 2010 5:11:25 PM

No adapter needed, just plug them with the PWM-pin unfilled.
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October 4, 2010 2:51:46 PM

Quote:
they do make adapters for just such things..


Yeah they do but they don't make them for a 4 pin header only 4-pin connector for the PSU.
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October 4, 2010 5:59:37 PM

What like?

@Timop but what about fourth pin on the header what's that for?
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a b ) Power supply
October 4, 2010 10:48:13 PM

ITsonic said:
What like?

@Timop but what about fourth pin on the header what's that for?

The fourth pin is for PWM, a form of fan speed control.
3-pin fans can still change speeds, the Mobo simply reduces the volts supplied.
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October 5, 2010 1:20:16 AM

So the Mobo will make the fan run at a slower speed or something by reduceing the volts?
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October 6, 2010 2:13:23 PM

Best answer selected by ITsonic.
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June 17, 2013 4:09:11 AM

but my cpu fan maxed out with 3-pin connector on 4-pin header
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