http://www.linuxquestions.org – I have been having problems with my ECS A770M-A motherboard on my home-built Linux desktop: Even when I replace the battery with a fresh one, I am still getting "CMOS Battery Low" error on my desktop. The story went as follows: When I installed the motherboard (and all the other components) into a new case, I got all the hardware working fine. (HowTos)