I have a 1080Ti on a Z390 board's top slot with the others empty and it's only running at 4x according to HWiNFO and GPU-Z. I ran the stresser to check if it was in a power save mode but nothing has made it leave 4x mode. I believe this started after I installed an M.2 NVME drive. But why would this happen? I thought the chipset handled M.2 ports leaving 16x for PCIE slots? I game at 4K so this bandwidth problem is alot more severe for me. I can't remove the drive because it's my OS drive and I'm not going to go back to the early SATA SSD that I came from. Could anyone help me figure this out?