High Temperature Cooler Master Hyper Z600

hello,

I just received my Cooler Master Hyper Z600 and comes with thermal paste is not tiptop ...

I have installed and my e8400 @ 3GHz under OCCT (OverClock Checking Tool) rises to 50 degrees.
Is this normal?
thank you

Previously what was the temperature ?

I see too much difference (I had the intellectual rad)
I added the fan is Noctua NF-p12