Ryzen Master vs BIOS OC differing stability

[atm0706]

So I've had my r5 3600 clocked at 4.4ghz at 1.33v for a while (1 month), but lately I've been seeing posts about supposed degradation with all core voltages as low as 1.27v. This has caused me to rethink my overclock so I started testing again with lower voltages. 

 

I'm pretty stable with a BIOS OC of 4.3ghz at 1.28v. I went and ran some r20 tests and it was fine (haven't tested prime95 yet, but I will). I then decided to open Ryzen Master and kept lowering the voltage between r20 runs to see how low I could get it. I also monitored voltage in hwmonitor while doing this. I managed to get 4.3ghz at 1.20v in Ryzen Master with like 10 back to back r20 runs, so I thought I'd go and apply it in BIOS because it's inconvenient to reset in Ryzen master every time I use the computer.

 

It didn't work... If voltage is set in BIOS, it isn't stable below 1.28v. Why are the results so much different? Does anyone else experience this?

 

Ryzen 5 3600

Evga clc240 (cpu stays under 62c under load)

Msi mpg x570 gaming plus

G.skill ripjaws 3000 cl15 (running 3600 cl16)

Intel 660p 2tb

Evga RTX 2070S Black

Windows 10 pro

 

[atm0706]

So I think Ryzen Master is preventing the voltage from changing beyond what is set in the bios. For some reason, the voltage appears like it has been changed in both ryzen master and hwmonitor. However, it shows the bios voltage in cpuz no matter what. Even I if I raise the voltage. The clock speed changes are reflected in cpuz in real time.

 

As a test, I set voltage to 0.75v in Ryzen master, at 4.350ghz. Ryzen master and hwmonitor both show the voltage at 0.75v. While cpuz shows 1.288. I then ran cinebench r20 multiple times and got the same scores as voltage at 1.288... also pulling the same 86w and same 60-61c temp.

 

 

Is this normal?

 

[Mister Woof]

Does Ryzen Master automatically apply on startup yet?

[atm0706]

No it doesn't as far as I can tell, that's why I was testing with it, and then went back to the bios to apply what I thought was a valid result. I don't think Ryzen Master actually changes the voltage at all.

 

[Guest]

Its not the v-core that kills chips its the extended full load current draw. That's Amps not voltage. 

 

Ditch the HWMonitor program. It lacks the details you need to properly monitor your system in it's entirety.

 

Use Hwinfo64. It's going to be super detailed for your monitoring needs.