Sorry if I was unclear...I have one 6pin, you are correct, however I don't have a 6 pin free from my PSU. Inside the GPU box, there was a 6pin adapter to make it into 2 4pins. Each 4 pin is currently plugged into a male end from my psu on the same overall supplemental power cord. Thanks for all the support so far.
It should work unless you have something else in there that is loading the psu. If not then perhaps the psu is full of dust and failing. I once ran a 8800gtx of two such adapters off a 5 year old Enermax psu that wasn't even ATX 2.0 spec. (it was 1.7).