Hello guys, I got another GTX 460 here. The brand is Twintech which I notice you don't have yet, and here's the bios (768mb version) :
http://www.mediafire.com/?x1ejhc6y8jh1c5l

I notice that the stock voltage is 1.012 which is weird, overvolted from factory? Anyway, I got a problem, that the card randomly throttles to 405 core. For example I might be stressing with furmark and then at some point it goes 405 core and all testing from there on is useless, and I need to restart in order to get it back to normal...
I read something about dual displays causing that, but even though I have a projector hooked up (via audio-video receiver first) besides my screen, the receiver is off and is not visible in nvidia control panel and this throttling stil happens....so I don't think it's related...

The twintech seems reference design, is it safe to try aby of those bioses in your list KET as long as it's 768mb? Is there any of them recommended for a reference card?