Hi. I have a Sapphire 5850 (the reference card, no toxic, no vapor-x, y, z ), just the reference card that comes with dirt2 and with an open box ) ). Anyway, I spent some serious time about ways to overclock it, flash bios and so on. without flashing the bios I got it 100% stable and cool at 1060core/1280mem @1.35V using afterburner-amd gpu clock tool combination. And with the card being stabble, I want to use those freq 24/7, so I decided to flash the bios. But before doing something wrong, I coud use some information. So far I know how to modify, where to modify and what not to modify (the voltage only in the registers and not in the 'clock info 00' etc). What I don't know is what is the best method to flash: get an asus bios( the ones that you've been talking about around here) or modify my Sapphire bios. Because so far I don't see where is the problem modifying the clocks , voltage and CCC limits in my sapphire bios. On top of that, i feel not so comfortable about adding some other strange bios to my card, even if it'sthe same reference version. What do you think about this?