I have a motherboard that was lying around a few weeks and when it came to install it, it would detect the mounted devices and then give me this message: "CMOS checksum error - Defaults loaded". After that, it would just freeze and won't let me do anything. I can't even enter the BIOS before that message is displayed. Also, the beep that the computer speaker makes when the computer is first turned on sounds like a slurred beep. Is this sort of problem due to a grounding on one of the mounting posts? or is it that my CMOS got corrupted somehow (static?)? Or whatelse could be the problem?