Before I start, here are the parts of my new rig: Biostar TZ77B Mobo 3770k GTX 670 2 Solid State Drives External CD Drive. Today, I tried overclocking my CPU. Bad idea. Went into the UEFI Bios and disabled the turbo setting, enabled fixed CPU Ratio, and set it to 40 (100 FSB * 40 = 4GHZ). CPU Fails to boot on reboot. Ok np. I reset the CMOS and try again. Boots this time, except windows BSODs on load. I try to force boot via CD Drive and the CD Drive refuses to load too. Take out CMOS BAttery, Reset jumper again, CD Drive still bad. Try new CD Drive, it works, windows installs, all is well, except whenever I turn my computer on now, I get CMOS Failure then it boots windows. Does anyone see this CMOS Failure message being a problem? Can anyone explain to me why I had to reformat my SSD because I set a bad clock ratio in the BIOS? Help me understand please.