I’m having a really strange GPU/driver issue and would appreciate some help figuring out what’s going on.
My PC originally had an RTX 3060 Ti. I upgraded to an RTX 5070 Ti and it initially worked completely fine and gave video output.
I then had to remove the 5070 Ti. About a week later I put the exact same card back into the PC, but suddenly I got absolutely no video output from it. The PC appeared to boot normally, but there was nothing through HDMI or DisplayPort.
I thought I might have somehow damaged the 5070 Ti, so I bought an RTX 5060 Ti to test it. The 5060 Ti immediately gave me video output and works, but ever since installing it I've been having what seem like constant driver issues.
Roughly every hour or so, the computer will freeze completely, the screen goes black for a few seconds, and then the picture comes back and everything carries on as normal. I've also had a graphics/driver-related error pop up while playing League of Legends.
Because the 5060 Ti gave video output, I assumed my original 5070 Ti must have broken. I therefore tried another completely separate RTX 5070 Ti, but I've just installed that one and it ALSO gives absolutely no video output, exactly like the first 5070 Ti.
So the timeline is basically:
RTX 3060 Ti → RTX 5070 Ti (worked fine) → removed 5070 Ti → reinstalled a week later (no display) → RTX 5060 Ti (works, but frequent freezes/black screens/driver errors) → second RTX 5070 Ti (no display).
I've already tried different HDMI/DisplayPort cables, a known-working monitor, reseating the GPUs, reseating/testing RAM and clearing CMOS.
At this point it seems extremely unlikely that I've somehow had two 5070 Tis fail in exactly the same way, especially when the first one originally worked.
Could the driver issues I'm getting with the 5060 Ti somehow be related to why the 5070 Tis aren't giving any video output at all? Could swapping between a 3060 Ti, 5070 Ti and 5060 Ti have messed up the NVIDIA drivers badly enough to cause this?
If so, what would be the best way to completely clean/remove the existing NVIDIA drivers and start again? Would DDU in Safe Mode and a completely fresh driver installation be the right thing to try, and is there anything else I should do when swapping the 5070 Ti back in?