My 6800 ultra started to give messages about not having sufficient power, those are gone now but when i start the pc and its just on I can play games at 60 frames PS but after a while it reaced around 10 Frames PS.
I thought maybe becouse of new games my computer cant handle them so i installed a game i knew worked fine, but it had the same problem.
sometimes when my pc boots its even put my card to 128 mb ram instead of 256 so i have to put it back.
Is this still not enough power or something different ?
Not enough information. PSU, CPU, MB, ram, etc. Don't write a book, but be descriptive.