Okay, lately my computer has been lagging really bad. Usually it's fine at first but a few minutes into playing games, it starts lagging really bad like 20 fps and the audio becomes choppy. Even if I exit the game it's still pretty laggy which forces me to restart the computer. After a reboot it's fine and everything is normal and games can be playable. This problem is getting really annoying. Just today, when I went to restart the computer, it was at the "Shutting Down" statement and it wasn't moving. Then the screen went black, started beeping 7 times, and a yellow light flashing. I read the instruction manual and it says that the 7 beeps mean Processor failure, and the yellow light flashing means that there's a problem with the system board. So please, help me :'(