Hey! I recently purchased a 2070 super xc ultra. I had to upgrade my psu so I went to a local store and picked up a tx750m psu. The 2070 super requires an 8 pin and 6 pin pcie power cable, but my psu only has one 8 pin spot for pcie. Is this power supply not compatible at all and do I need one with 2x8 pin pcie slots? Thanks