I just put together a new PC minus the GPU and tried to use my 2080ti in it and it will not work. The gpu does not show anywhere in device manager. I have tried to limiting the pcie slot to 3.0, and first preference to the dedicated gpu. A mobo bios update didn't do anything either. I have tried two different X670E boards (ASUS TUF gaming and ASROCK PRO RS . the computer does boot with the GPU installed but does not recognize that there is a dedicated gpu there. I can't install drivers because the system doesn't see the card so it is not a driver issue. I do have both power plugs installed on the card. I have re-seated it multiple times. I have re-seated the CPU. The GPU does work in my X399/ 1900x board. I don't know what else to do here. I have an old gt1030 that works just fine in the X670 boards but not the 2080ti. If you have any ideas or need to know more information let me know.
All parts used in the new pc:
mobo: X670E-PLUS TUF GAMING WIFI
cpu: AMD AMD RYZEN 9 7900X
ram: G.SKILL 32G 2X D5 6000 C30 NRGB B
ssd: SAMSUNG E 2TB 980PRO NVME GEN4SSD
psu: CORSAIR HX1000 80+P FM ATX PSU
gpu: Asus ROG STRIX RTX2080TI O11G (The problem child)
All parts used in the new pc:
mobo: X670E-PLUS TUF GAMING WIFI
cpu: AMD AMD RYZEN 9 7900X
ram: G.SKILL 32G 2X D5 6000 C30 NRGB B
ssd: SAMSUNG E 2TB 980PRO NVME GEN4SSD
psu: CORSAIR HX1000 80+P FM ATX PSU
gpu: Asus ROG STRIX RTX2080TI O11G (The problem child)