Just to add... I've updated my sapphire 5850 with this MSI unlocked bios, it works absolutely fine. I've since set afterburner to 1.25v, gpu>950Mhz and memory>1225Mhz.
Ran furmark for 15mins to get it up to full temp, tried a couple of loops of crysis benchmark too, everything is stable, very happy, not even gonna bother tweaking with more volts these clocks will do me just fine![]()
Try 1250 or greater on the memory. The memory chips are rated at 1250 so they'll work at that speed no problems
![Wink ;) ;)](/styles/default/xenforo/vbSmilies/Normal/wink.gif)