I have MSI K8N SLI AMD board which is now 5 years old. A couple of months back I noticed that the BIOS was getting Reset automatically whenever I boot my system. Suspecting it to be a battery problem I changed the same and my system worked fine afterwards. But just few days back the same problem came back. My computer guy told me that the BIOS battery I replaced previously may be defective and thus I changed it again. The system again worked fine for a week but now the BIOS gets automatically Reset again. Why is this problem coming again and again? Is it actually a BIOS battery problem or is my motherboard showing its age? Also the CPU starts on its own whenever I turn on the UPS - without me even touching the power button of my cabinet. Whats the problem? Please help!!