Temps mean's nothing but I'm wondering what app' needs you to have your cpu at 4Ghz ? No forgetting there are many different ways to reach that frequency on cpu.

I seriously think you would better try yourself with this one if it's only a one-year shot. A good occasion to progress

The reason of my answer surely is because that's a lot of volties on cpu almost regardless to your cooling
Try remaining under 1,35Vcore HT/high uncore(and all that) activated