I forgot about this thread for a bit.
Anyhoo - I found out that I have to connect a total of 3 power connectors to my GPUs; 8 pin, 6 pin, and the molex riser. Funny enough I can actually use unpowered risers - just as long as I have those 14 pins connected. Hope this help others.
Hi Cris - glad you got it working. Have to admit it took lots of hair pulling to get there...
I forgot about the thread as well, only realised when I checked my notifications.
dazza12 please post your addy. You gave me the idea of attaching the additional 6 pins.
My addy is 1CA4a9dfgbYhW3qc48CJbitBxDTUT3wNgx (BT- if any other is easier let me know).