I have an Asus P8Z68-V Pro motherboard and a Cooler Master Silent Pro 700W PSU. The PSU has two 4-pin connectors and the motherboard has one 8-pin EATX12V connector. It boots fine with only one 4-pin connector plugged into the 8-pin EATX12V connector. I wonder whether I should also plug the other 4-pin connector from the PSU into the 8-pin connector on the motherboard, that is, plug the 4-pin connectors side by side into the 8-pin connector? I have not tried because I am afraid to damage something. Also, if I should connect it, how would I benefit?
The manual (you have to select OS, select any, and then choose the English manual to reach it) says the following: