My computer has a history of freezing. It randomly shuts itself off, well as i restarted my computer i went to the bios and it said my cpu temp was 158 degrees! I know that is not normal, so just about a week ago i was on my computer and i was surprised that the computer did not freeze and to my surprise it shut it self down. I noticed a smell in the air like something was burning and I thought it was my g/f cooking again. I opened the side panel of my pc to let cool air come in faster and i waited 20 minutes till i started the pc up again. the first 10 seconds after it was on i noticed a bright light reflecting off the wall and i got up and looked at the side of the tower and there was actual fire right next to my fan. What can be causing the problems of freezing and the fire.