I have an AMD 5800K quad on a MSI FM2-A85XA-G65 motherboard. It won't save date and time. Sometimes it will sometimes it won't. I save and reboot and go back into the bios the right date and time is displayed. I reboot the correct date is displayed but the time is wrong. Sometimes the time is right but the date is wrong. Nearly all the time, the time and date is correct in Linux Mint 16. Though maybe the time is obtained from the network? I updated the bios to version 1.5 up from 1.4. Still same problem. The battery seems good as all other changes remain except the date and time problem. I have tired cmos reset and removed and replaced the same battery. I plan on a new battery anyway. Any ideas?