I have a Corsair 620W Power supply and a GA-EP35-DS4 Mobo. I am in the middle of the build and I cant figure out weather to use the 4 pin 12V connector in that slot or the 8 pin EPS12V connector in that slot. Out of the box the board has a little plastic thing in one half of the ATX_12V_2X power slot...but In the manual it shows it as an 8 pin slot? Which do I use?
You have to use the 4pin or the 8 pin. 8 pin is more stable for processors that take more power. 8 pin is also recommended.
The plastic blocker is to stop you using the the WRONG 4 pins should you decide to use the 4 pin connector.