Over Easy Please

I thought I friend my CPU last night. I was messing around inside the case while it was on. After doing a little changing, I walked away. I came back about 5 to 10 minutes later only to find my computer shutting on and off. Everything was blinking on and off. I thought the power supply cooked and was cooking everything else with it. But then I noticed something. Putting my finger near the CPU fan did not scrape my finger like usual. The CPU fan had stopped. I gave it a little spin, and it grinded away. So I shut it off, and and pulled the fan and heat sink. The heat sink was too hot to handle. Luckily (after several minutes of searching) I found an extra P4 fan that I had laying around. Plugged it in, and I was up and running again.