It works fine on the p4m800pro-m v2. However, it does not run on the Gigabyte 965P-DS3 Rev 3.3. I just got the Gigabyte in the mail today and hooked it up and it would not POST with the modded CPU. I removed the mod and it posted fine. I can still get the CPU up to 333x9 stable with little voltage increase, so its still faster than the ECS I upgraded from. Still, it would be nice if it would have worked with the BSEL mod.