atx 12v vs eps 12v

[inquisitor1]

so looking at the 4+4 cpu connector of a psu I have, I think 4 of the connectors seem to be atx 12v but what are the other 4pin? they arent like any of the diagrams shown.

looking at the eps 12v 8pin connector diagram, and comparing to the 4+4 layout the psu I have, it doesnt have this 4 square and 4 rounded connectors of the eps 12v. it has 4 of the pins like the atx 12v as shown, but has another 4 thats all rounded. those 4 rounded arent shown in the diagram. so what is happening?

I think the reason I have one of the wire/plastic burnt/dried/cracked is because Im guessing the motherboard wanted 12v eps and I gave it an atx12v connector?

this psu works perfectly fine till I pulled it from an older fx cpu build. im sure its good, but trying to understand the connectors. I did get 2 molex to an 8pin eps as shown in the top diagram. I would like to try it on another build just to see if the psu works. dont care to buy another psu tester. had it, tossed it. showed a corsaid psu thats ok, when it was dead.

I want to try the psu, and ill try, jyst want to know if I should transplant the 8 pin for the 4+4 or just use the 2xmolex to eps 12v as is.

psu is antec vp600p

 

[_roman_]

You did check the polarity with a true rms multimeter before? And the pinout of those connectors?

when everything is okay and working as specified you can just exchange the connector. I will not determine over the air if your up to 6 year old psu, with 3 years warranty and only 80 plus rating is fine or not.

i think most mainboards clearly state how the connectors are and which pinout. I'm kinda sure every quality psu has a pinout which makes things really clear.