On boot up there is an option to core unlock. To do this you have to press '4'. I did so and immediately the computer shutdown, and then started up by itself a few seconds later. Now when I turn on the computer it stays on the motherboard screen. Not doing anything. Please help me, I don't know what to do or what it broken/needs to be fixed. My motherboard is an Asus M4A88T-M and processor is the Athlon 445 x3. thank you