I have read from a number of people on here that if you have upgraded your firmware on the mobo it is a good idea to reset the bios. My motherboard has a reset switch at the back. I have no idea if it has a button inside on the mobo and I am also guessing I have a battery but don't remember seeing it. So what is the best way to reset? Just hold the CMOS button down on the back of the PC with it turned off but still plugged into the wall? Job done?