The -1000Mhz was only to show you that you don't have a RMA, you have temp problems in the memory... and you will have it also with a new card, and also with another brands...
With the -1000Mhz the memory get less hot and i will be stable from the begining... of course you will get only +70Mhs but they will be stable... because there is memory trolling.
My photo is after the solution of the mem temps...
I have to disagree
If you have to put -1000Mhz, or change the thermal pads because it's horrible, yes, it's a good reason to RMA
After you changed the thermal pads, your card is running 24h stable at 100mhs?
70 Mhs consuming 235w don't look so good, the good thing about RTX 3080 is the 100Mhs for 250w
