What CPU?? If an Intel, not likely fried. Same for a leter model AMD, they protect themselves by turning off.
Go to http://www,cyberguys.com
Look at items 161 0064, or 161 0070, or 161 0067. Maybe also 161 0062 or 161 0060.
They are replacement HSF holders for various CPU's.
The contact between the CPU surface and the bottom of the HSF must be very intimate, or the CPU gets too hot in seconds. Just had to get one for the same problem.
today i was cleaning my PC(taking out dust and the PC was off) and was trying to take out the fan on top of the processor. THe little hooks that keep the fan in place broke, with only one surviving. So the fan stayed on. I then went to turn on the pc and everything went fine. I started doing things on the PC and then all of a sudden it froze. I did a cold reboot and then i let it boot up and went away for a moment. When i came back to my amzaze, it was frozen again. I started the computer up again and i started it up in safe mode and everything went find so i restarted the PC again and then it would stop working on the load up screen. Now im thinking is that since the fan is not right on top of the chip that the chip has been fried. Now what can i do?!?!?!?!?
In need of emergency help