new to alienware just bought it. i got the base model right now but i bought a geoforce 1080 and found out that i needed a 8 pin for the power so i went back to best buy and got a 1060. Downgraded to a 6 pin and it came with a adapter for a 8 . Did i screw up can i still run the 1080 and just use the adapter. i only have a few days to go back to the 1080 so i kinda need to know what to do. Thanks