This workt but my 3080 insta crashed with your settings, toyd around with it abit and best i could get stable was this
And if i went higher on mem i got CUDA Error: unspecified launch failure (err_no=4) after 1-2min and if i went lower with core my mh/s went down!
Had it running with the ASUS rog strix bios for a month but got tired of looking at the high power and i was only getting 97mh/s out of it. So im 99% sure i was just unlucky with this 3080 or its just NB miner but i have LHR cards in the rig and i didnt bother testing any outher miner, but for everyone ells try using my settings as a base and go up with 100 mem until you crash.
PS had to keep the 420 just cus
Edit: did some fooling around and PL is the key here if pl is 0 i get pre flash hashrate if i set PL to 420 or 430 i get 97+ mhs