Rambo fan pin

Does anybody know what pin on the Rambo board can supply power to a fan that is constantly on. I want to plug in a 12v computer fan in to keep a constant flow of air over the board. I tried the pins labeled fan2 on the picture below but my fan didn’t run but I’m also not 100% sure my old fan works.

Just wire it into the power supply.


Thank you. That actually never crossed my mind to do that.

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