Are CPUs hot swappable? Can I just remove one like a flash drive while the computer is running? (P.S. How do you tell if a computer is on? I hear fans running and there are lights on. Help plz!) I have been very curious about this. I have searched the internet, but no info is available about this topic. Please help. I need to know for a future project I would like to work on in the future because it may be useful in the future.