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Using 2-pin instead of 3-pin

Last response: in Components
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October 27, 2013 3:02:41 PM

Hello

I have an NZXT Sentry Mesh fan controller. It regulates voltage. I'm using a 4-pin to 2-pin Molex adapter as the Sentry Mesh isn't compatible directly with 4-pin Molex. The fan controller has 3 wires on it's power-in Molex but only two are used now.

Is this OK? Can i use it like this?

And finally what is the 3rd pin on that power-in molex on the fan controller that is not + or - ?

Thanks!!

More about : pin pin

October 27, 2013 3:04:41 PM

AwesomeFX said:
Hello

I have an NZXT Sentry Mesh fan controller. It regulates voltage. I'm using a 4-pin to 2-pin Molex adapter as the Sentry Mesh isn't compatible directly with 4-pin Molex. The fan controller has 3 wires on it's power-in Molex but only two are used now.

Is this OK? Can i use it like this?

And finally what is the 3rd pin on that power-in molex on the fan controller that is not + or - ?

Thanks!!


It's completely fine, but the fan may not be able to go full power.
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October 27, 2013 3:10:38 PM

John Bauer said:
AwesomeFX said:
Hello

I have an NZXT Sentry Mesh fan controller. It regulates voltage. I'm using a 4-pin to 2-pin Molex adapter as the Sentry Mesh isn't compatible directly with 4-pin Molex. The fan controller has 3 wires on it's power-in Molex but only two are used now.

Is this OK? Can i use it like this?

And finally what is the 3rd pin on that power-in molex on the fan controller that is not + or - ?

Thanks!!


It's completely fine, but the fan may not be able to go full power.


Ah, ok.

I've searched the internet up and down for a 4-pin Molex to a 3-pin molex adapter - Can't find it.

What is the 3rd cable on the fan controller used for? (The one that is not + or -) is it for regulating fan speed via the PSU or so,ething? Is it for LED fans?

Thanks for the help! :) 
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October 27, 2013 3:13:03 PM

I'd assume to give more power to the fan
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October 27, 2013 3:15:08 PM

John Bauer said:
I'd assume to give more power to the fan


Hmm yeah, makes sense since it's 5x 30W outputs.

Thanks for the help, I found some Molex trivia on google that'll solve this for me :) 
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