i have winfast a400 tdh (Geforce 6800 128mb) .But 4 months later my card shown incorrect letters like meachine language in startup screen (dos mode).In windows mode many lines appear and i can't chane 32 bit color.I check with winfox cup core speed is 200 and memory speed is 400.In winfox bios flash utility it's shown cross sign corespeed and memory speed.So what can i do ???my card is damage?
