I recently built a gaming computer with the following specs: i5 2500K OCed to 4GHz (No voltage change) Corsair TX650 power supply ASUS P8P67 Motherboard ASUS GTX570 Direct CU 2 (no over clock, just left it at 735MHz) G.SKILLS Ripjaw X 8 GB (2x4GB) kit 1600MHz 9-9-9-24 @ 1.5V WD Caviar Black 7200RPM 500GB SATA3 32mb Cache HAF 912 Case Problem: The first time I booted my computer, everything was fine. But when I tried to turn it on the next day after a full shut down, it wouldn't turn on with the power button unless I unplug it from the wall socket first.After starting, my PC would then take me to a screen that says:"Keyboard and Mouse detected.....press enter to restore your BIOS or Press F1 to enter settings" upon pressing F1, it would take me to the normal UEFI interface, except all my previous settings are reset to the default values (boot order, CPU multiplier, etc) I checked the voltages on my graphics card, memory, and CPU, everything looked ok. Motherboard standoffs are installed correctly, and so is the I/O shield.I've also checked all of my connections, they are all connected properly. I'm pretty sure it's not the motherboard battery either since my system timer wasn't messed up. so what's the problem? I'm so frustrated! any help would be greatly appreciated. Edit: all drivers are up to date, BIOS flashed to most recent one. No trouble waking from sleep.