So its the easter weekend. What better way to spend it than play with my new toy.
I have been toying with undervolting ryzen for the last 10 hour to try an understand the stability of ryzen with temp. This is what I did. I know I can hit stable 3.7 GHz on 1.25 v MB Vcore (1.2v after VDroop) at 57C (60% rpm). So I sat around with my fan controller and adjusted the RPM manually to hold the temps constant at a desired value. The minimum voltage required to be stable for 1 hr stress test @3.7ghz is listed below:
57C-> 1.25 v (1.2 v after vdroop)
55C -> 1.2375v (1.190v after vdroop)
52c -> 1.225 v (1.180v after vdroop)
50C -> 1.2125v (1.173v after vdroop)
48C -> 1.2 v (1.167 v after vdroop) 20 min stress stable.
I am impressed and upset at the same time. Should have gotten a better cooler!!! But it helps that I have 2 noctua and 2 cougar led fans and its not very loud. Decided to go with 1.225v as it requires 80% fan speed and barely audible.
But will try out 3.8 and 3.9 GHz stability as well tomorrow.
Just ordered couple of copper heatsink and a 40 mm noctua fan for the SoC VRMs which are left naked in the MSI b350m mortar to see if the Vdroop decreases.