I have a gigabyte z77-d3h motherboard and have been running a gtx 660 in the PCIEX4 slot for several years. I just got an MSI 1060 6gb card for christmas and want to upgrade. Due to my case size, I cannot fit the new 1060 into the PCIEX4 slot, only the PCIEX16 slot. However when the card is in...