No such thing as a processor light. Front Panel lights may include Hard Drive activity light, but no such thing as a MB processor light. Perhaps ask a friend or relative who knows nore about computers to help to diagnose the freezing problem. Or take the system to a tech. List the system specs if you expect further ideas.
I really appreciate the heads up on the correct name for this light. Perhaps it will help me in searching for a friendly answer to my problem. I am an old lady who speaks English living in rural Costa Rica where I do not have access to much help along these lines. I'm really at my wit's end and need a little help, not more computer speak that I do not understand. But thanks for the help you did give, even though it's gibberish to me.