I thought it would be a z77 chipset... that chipset was an unstable release that Intel should never have proceeded with. That why your BIOS settings are changing (by what you seem to have said) by itself. (For instance, the last Intel BIOS upgrade was May 2013... to give you an idea)
That chipset, you need to run in its factory default state. The memory setting are safe to modify, if using XMP. (setting the main four settings and correct voltage)
If you're running Lucid Virtu - don't run it with DCS, they don't play nice together