I see on similar board some users are not able to get the overvoltage on the board to work with some memory.\r\n\r\nThe TWIN2X2048-6400C4 are 2.1v and I set ddr2 overvoltage to +0.3 over the default base of 1.8. Sound right?\r\n\r\nI 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.\r\n\r\nI did upgrade to the latest bios but that made no difference in changin changing the voltage settings. Gigabyte qualified the memory too.\r\n\r\nAny thoughts? Am I using the wrong seetings for the memory? \r\n\r\nLet me know!