I upgraded my BIOS earlier today, i have run superpi, 3dmark 06 and encoded god knows how much video all 100% stable. The big difference however is that i can actually reboot and not have to reset the CMOS as i did before. Also i managed to squeeze 3.5Ghz out of it when before my max was 3.1. If you have a DS3 and a 4mb cache chip i highly recommend the upgrade.