So I'm buying a new gtx 1070 ftw, which requires x2 8 pin connectors, but all I have is a (6+2) and a (6). I have a thermaltake 500w psu, which I plan on upgrading asap. Can I just plug the 6 pin into 1 of the & pin connectors. This will only be for 2 weeks or so? I probably won't do anything too graphic intensive.