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Using 2-pin instead of 3-pin

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!!
4 answers Last reply Best Answer
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  1. 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.
  2. 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! :)
  3. Best answer
    I'd assume to give more power to the fan
  4. 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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