Thanks for your replies !
So I started with the second option (300 khz / 1.30v / Turbo)
On idle I was at 1.293V for VR OUT :
However, as soon as I started Small FFTs I've got a blue screen.
I tried the other option (300 khz / 1.360v / High)
On idle 1.342V :
5-10 minutes of Small FFTs 1.213V :
I didn't hit the 100°C mark this time. However, one thread was never at 100%, not sure if this is normal.
Unfortunately it seems mine was not stable even at 1.30V according to the first test
VCCIO seems to be at 0.946V and VCCSA at 1.044V according to HWiNFO64 (that's the correct lines to check right?).
Should i change them now? I'm planning to activate xmp or overclock manually my ram after the CPU is stable, so i will probably have to change them later right?
Anyway thanks for your help everyone.
So i'm not sure if the records seems ok to you. Should i proceed to a longer "Small FFTs" or there is something fishy ?