Information about the possibility taht nvidia will forbide preoverclocked video card on the base of chip g80 appeared before the announcment of those appropriate card. Judging by the fact that the opinions regarding were divided, NVIDIA at that moment did not make a final decision -.
Judging by the statements of associates , any preoverclocked measures are not accepted. All video card geForce 8800 GTX and GeForce 8800 GTS, supplied for the market, must work at the standard frequencies. Even if in this case they are equipped with water-block. In a similar case the partner of NVIDIA simply worries about the improvement in cooling conditions of video card, and responsibility for overclock can take user. .
Problem NVIDIA consists in the fact that the deficiency of chips g80 exists, they are not sufficient for the satisfaction of demand in retail, and their is not an emergency reserv, from which must be done the replacement of video card for the guarantee. Associate communicates that NVIDIA has its preferences with the distribution of video card series geForce 8800 among partners: some obtained more video card than other. All depends on how frequently one or other producer has relation with nvidia.
By the way, according to the data of British associates, NVIDIA works at more rapid version Of g80, which must be released in spring following year. Obviously, this will be the ace vs the prepared up to the moment announcment video chip r600 from AMD/ATI. Let us note that the overclocked by producers versions of video card on the base of chip g80 or its updated modification will appear. sometimes