I see on similar board some users are not able to get the overvoltage on the board to work with some memory. The TWIN2X2048-6400C4 are 2.1v and I set ddr2 overvoltage to +0.3 over the default base of 1.8. Sound right? I cant boot in this mode. The symptoms are seen on other posts, appears to boot but the video never comes up nor the cpu fan. If I just put 1 dimm in slot 4, I can boot just fine and get into the bios again or install the OS. But the memory is in Single Channel mode. I can also put both dimms in slot 3 & 4 and run in single channel with the 2048MB. I did upgrade to the latest bios but that made no difference in changin changing the voltage settings. Gigabyte qualified the memory too. Any thoughts? Am I using the wrong seetings for the memory? Let me know!