Are these still shipping with old cables? I just got my Core P5 in from Amazon, and it looks like it's potentially the old cable. I have given it a shot, but I get what appears to be the same issues many see here. It flat out won't boot, or when I can get it to boot I get a LOT of stuttering and seems very unstable. I have tried ensuring everything is seated correctly with the riser cable, but no luck still. I am running an EVGA 1080 Founders Edition
Edit: I just sent an email to Mike