You are mistaken.
The colder a CPU runs, the better, as conductivity improves as temperature decreases.
In order for you to damage it out of coldness you should cool it enough so it goes into a state of matter called the Bose-Einstein condensate. And that is measured in mK (mili-Kelvins). Not achievable outside a lab. That, or to be stupid enough to use a compressor, and let it condensate water around the CPU block, which will lead to a short circuit.
(If you find any mistake in my English, please let me know via a PM)
(Really, I speak terrible English, so please, tell me if I make mistakes. I'd like to improve it a bit )