EVGA Supernova 850 GM, brand new. GPU is around 8 months old.What is the make and model of y our PSU? Please include it's age?
This the most common way to get power to most modern GPU's.... so yes, if the cables from your PSU have a "6 pin + 2 pin" connector, you can definitely do what you are askingit uses two 8 pin, and a 6 pin connector for power