If this is ecs windows overclocking software, it's possible the software doesn't work properly. I had a similar issue with my biostar software; stopped using it and used only the bios for overclocking.
I just remembered that before I noticed the problem I accidentally engaged the external CMOS reset Button while the PC is turned on. Does anybody have any idea if this could be related to my problem. I tried reinstalling BIOS updates, even older Bios versions but still the same. There were times when I can access MIB II in the Bios but crashes when I make changes in settings. Pls. help me.