Exactly. I'm thinking of installing a fan controller. That way I can easily control the fans until I hit a "good" temp spot, ~85-90C.
Here's the plan either way.
I will first run a simple OC at 4.5GHz for 1 day with the lowest possible vcore and temps (using h2o loop).
That way I can easily know for sure that it was/is stable at 4.5.
After that, a friendly 5 days vacation for it at 85-90C full load using a fan controller and aircooling. And still at 4.5Ghz. Now the fun thing is. If it degrades, it should simply BSOD 124 within 5 days. If not, I can simply push on with vcore to 1.52-1.6. And use H2O. Heat would no more be a problem and it would be possible to run at a high voltage.
If anyone has a better idea, let me know.