I used my 7600gt on a 200w PSU, with only 10amps on the 12v. It worked fine under load too, I'd play Oblivion and The Witcher on high, just fine. It didn't need a 6pin PSU connector, but it proves that certain cards will run on far less then the "required" power specs. I also don't think running in a less than optimum power situation will fry the card, but it could be prone to overheat faster, or create random restarts.