^^ What are you going to do with that 4.8GHz that you can't do with 4.2GHz for 24/7? Besides, that seams to be buggy at idle, but try the 130% too.

You have 3 options: @4.8GHz with a manual high idle/load vCore, or with low-idle offset mode that seams to be buggy at idle, and can crash on you anytime, or a @4-4.2GHz low-volt manual vCore. You choose yourself, but you have the 140% to try too, LOL.