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Way to test 3.3v line?

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Usually 3.3v are the orange wires going from the psu to the atx connector on your mobo. There should be a sticker on the side of the psu showing the pinouts. On one of my 300w psu's (one that has adjustable outputs) I spliced into one of the 3.3v lines so I could measure the output while I was adjusting the psu output.
Thank you very much. I jsut wanted to know since my 8k3a+ is saying me 3.3v is at 1.54. Its good though.Kinda weird the only voltage sensor that works is the 12v. Go figure
are you using mbm5? if yes, then it might reading values a bit off. try to set the voltage sensor of 3.3v from "standard" to "epox ep 8kha" that wud seem to give a more accurate reading. hope all goes well :)