Ryzen3600, 16gb lpx 3200mhz ram, MSI Tomahawk Max, Scythe Ninja 5 with 2xArctic P120 fans
OC to 4.45hz, 1.375v stable enough for:
- Intel Burn Test- Temp 83C - CPU Power 95W
- Sandra bench 235gops, 177gflops,
- CinebenchR15/20 - 79c/82w and 80C/86w respectively
… but crashes instantly in Prime95 Small FFT
On lower OC, Prime95 Small FFT:
4.4Ghz, 1.375v - runs but goes instantly to 92C and then I have stop it afraid it’s gonna fry.
4.35Ghz, 1.325V - runs at 87C/97W - impossible temp to test for stability for longer periods.
4.3 and 4.2 Ghz with lower voltages 1.28/1.275 still produce unfeasible high temps (83-84C) for few days stability testing.
These super high temps and wattages only happen in Prime95 Small FFT. I stress tested in Aida64, Blender bench, Sandra, CPUz… etc.
My questions are:
why is Prime95 considered the definitive stability test, many recommend it as the “proper” way to test OC stability, when it induces totally unrealistic levels of load… and why is the feared Intel Burn test much milder in terms of power draw/temps?
Is there a KNOWN issue Prime95 and 7nm Ryzens not getting on well? I heard something mentioned that Prime95 is being worked on to address this “issue”…
Does successful completion of multiple passes on the “High” setting in Intel Burn test validate stability of my CPU or do I need to put it through 3 days of Prime95 Small FFTs to be sure?