Store your computer inside of a deep-freezer. Just make sure that when you defrost nothing is running so that moisture doesn't cause errors or failures.
No really. It works.
This makes no sense. you said, store it in the freezer. you mentioned about how you can't use it in the deep freezer because of the moisture, which was my first though. But then you said to defrost it before use, which completely invalidates your suggestion. Would you like to rephrase?