grirvan
Sounds like their specs should have listed exact power supplies that are compatible then, otherwise for all of us that were fortunate enough to get one of these cards early on, it is a crap shoot whether our power supplies will work.
Not really.
MOST as in almost all top tier PSUs work fine with the 3000 series.
If you look at the list of known working PSUs you will notice they are all
top tier units.
https://forums.evga.com/We-need-to-have-a-thread-of-what-PSU-people-have-and-RTX-3080-or-3090-and-is-WORKING-m3118557.aspx And then there is the PSU tier list to look at on Linus's forum.
https://linustechtips.com/topic/1116640-psucultists-psu-tier-list/ But even that isn't perfect, it still does come down to what people will actually buy. It is a good place to start researching however.
Yes, I said research, and yes it is important, and I mean professional/teardown reviews.
A PSU isn't just an after thought or the last thing on the list to think about and cut cost on as so many people believe and actually do.
With all of the notoriously bad information and recommendations out there it's really no surprise some are having problems.
I saw literally tons of bad recommendations and bad information seconds after the cards were announced.
The same type people that always give bad information about PSUs in general.