I had the same exact configuration. I swapped my corsair PSU to a same 850w rog and issue never came back. Note that a 850w should be plenty for a 3090 but sometimes PSU components can deteriorate with time ( condensers etc…)
I had the same exact configuration. I swapped my corsair PSU to a same 850w rog and issue never came back. Note that a 850w should be plenty for a 3090 but sometimes PSU components can deteriorate with time ( condensers etc…)