hi everyone, i have a huge problem. after my onbaord network input cable went bad after got hit from electrecy failure , i went back to pc store where i stil had a warranty and replaced my p55m-ud2 gigabyte motherboard. thing is that i had to bring only the MB and i disaדsemble it by myself and than assemble it by myself. i than turn on my pc and it startup windows 7 but after 2 minutes everything stuck and nothing is working, not keyboard not mouse nothing . picture is just forzen. until the pc freezing i had the time to went to device manager and i see that there is nothing in (!) or (?) everything is ok. what could it be? is it could be due to processor that wasnt placed right? video card ? is there a possibility that i put the processor in the wrong way and pc will work and windows 7 will start up ? please advise ?