Got a new Msi Gtx 1070 gaming x GPU and Installed it into my rig and I'm getting a constant short beep with a interval of 15 seconds, I've tried everything I could find online ( pull RAM, change leads, delete old drivers) but it keeps coming up this same, it just starts up the BIos screen but doesn't continue from there, then it loses signal. Is it fine that I've used a 6 pin with a 2 pin power lead on the GPU 8 pin?