Cable Confusion Ax 1200i

Hi, guys



I have a cable confusion and its a 2 part question



1. i have a gigabyte h77m-d3h mobo and it needs at 12v and it is a 4 port

But the cpu connectors from 1200i is 8 pin and when i looked closer i found out that it can be split to 2 4pins.



My question is can i use any one of these and leave the other one hanging without any problem ?? (look below for pics of mobo pin and pin from 1200i)



Default 8 pin





After Split





Close up of split pins





----------------------------------------------------------------------------------



Now for my second part of my question



I have a nzxt phantom 410 case and it comes with 3 fans with already connected to the speed controller and i need to power these fans with a 3pin molex (actual 4 but one pin is missing). I know it works because its working fine with my 600W psu.



So my question is, in my 600 W PSU there are 4 pins coming out of psu to the 4 pin molex, but in ax 1200i the molex cable which connectes to the psu is 6 pin. So is there a power difference and will this work if i connect them both ?? (see reference pics below)



3 pin molex from case (nzxt 410 phantom)





4 pin molex from the psu





6 pin psu connector of the 4 pin molex cable