Hey dogie wondering if you could help me out.

I have a 6 pin PCI-e to 4 pin molex connecter. Looking at your guid and drawings I figured I need to plut in 2 yellow cables and 4 black cables. If I only have 3 black cables is that going to be a problem since its a 6 pin connector and not an 8?

Whats the best way to plug it in that way?