This is your standard EPS/ATX12V connector used for feeding the main processor VRM on a computer motherboard. The two 4pin connectors can be attached together to create an 8pin connector. The top four pins are +12V and the bottom four pins are ground.
I was recently taking a look inside one of my old power supplies and noticed how two of the +12V pins go to one 12V rail and the other two go to the second 12V rail. Then I see this webpage says the name of pins 7 & 8 are 12V2 (if the PSU has a second 12V rail.)
- I thought it was a no-no to combine the two separate 12V rails together?
- Does the EPS12V connector and main VRM keep them separate or is it no different than taking two wires from separate 12V rails and just tying them together for increased current capability?