My Asus P8P67-M is loosing its settings if I disconnect it from the power supply. I have been having the issue since I got the board and put it down to a dodgy motherboard battery and with the battery being a PITA to reach in my case I lived with it. I have changed case now and while I was swapping components I replaced the battery but its still happening. If the PC is connected to a power socket it retains its EFI settings, disconnect it or turn off the power and it looses everything. The odd thing is I had set up an overclock profile and although it was applied the turbo function ignored any changes I had made. Since changing the motherboard battery it now applies my settings and turbo mode goes much higher than it did before.