[SOLVED] Ryzen 5 3600 Undervolting Ryzen Master VS Bios

[MooMetal]

Hi Everyone,

I have a Ryzen 5 3600 and with the stock wraith cooler I was getting some high temperatures so I went with an aftermarket one, the Deepcool Gammax 400 Pro. The temperatures were better at 36°C idle and 80°C under high load but I thought I could do better.

I decided to undervolt with Ryzen master and got amazing results at 1.1v peak core voltage. My temperatures changed to 36°C idle and 60°C under load! My Cinebench R23 scores remained similar and it passed Prime95, Asus Real Bench and OCCT with no errors.

Emboldened by my findings, I went into the Asus Prime B550M-A's bios to make this permanent and changed the VDDCR CPU Voltage to 1.1V.

The problem I have now is that the temperatures are still low but my Cinebench R23 benchmarks have crashed by about 2000pts. I don't know what's going on.

I then tried to change the VDDCR CPU Voltage to offset mode and got it at about -0.0875v without degradation in Cinebench R23 scores but the temperatures have gone up again 🙁

Can someone explain to me what I did wrong and how I should go about applying Ryzen Master's Peak Core Voltage setting of 1.1v to the Asus Bios?

 

[drivinfast247]

Hi Everyone,

I have a Ryzen 5 3600 and with the stock wraith cooler I was getting some high temperatures so I went with an aftermarket one, the Deepcool Gammax 400 Pro. The temperatures were better at 36°C idle and 80°C under high load but I thought I could do better.

I decided to undervolt with Ryzen master and got amazing results at 1.1v peak core voltage. My temperatures changed to 36°C idle and 60°C under load! My Cinebench R23 scores remained similar and it passed Prime95, Asus Real Bench and OCCT with no errors.

Emboldened by my findings, I went into the Asus Prime B550M-A's bios to make this permanent and changed the VDDCR CPU Voltage to 1.1V.

The problem I have now is that the temperatures are still low but my Cinebench R23 benchmarks have crashed by about 2000pts. I don't know what's going on.

I then tried to change the VDDCR CPU Voltage to offset mode and got it at about -0.0875v without degradation in Cinebench R23 scores but the temperatures have gone up again 🙁

Can someone explain to me what I did wrong and how I should go about applying Ryzen Master's Peak Core Voltage setting of 1.1v to the Asus Bios?

Did you revert any changes you made with RM before messing with the BIOS?

 

[hotaru.hino]

The problem with undervolting in BIOS is it caps the voltage to that limit, if not locks the voltage to it. It's been a while since I played around with it. But the end result is when one of the cores starts turbo boosting, it'll cause the computer to crash because it can't get to the frequency it thinks it can.

 

[MooMetal]

Did you revert any changes you made with RM before messing with the BIOS?

Yeah, I reverted the settings in RM before going into the BIOS.
If RM could start with windows and auto apply the settings then that would be grand but it doesn't and I have to do it everyday which is a massive pain.

The problem with undervolting in BIOS is it caps the voltage to that limit, if not locks the voltage to it. It's been a while since I played around with it. But the end result is when one of the cores starts turbo boosting, it'll cause the computer to crash because it can't get to the frequency it thinks it can.

I see, is there a way around this? It would be nice to just make the BIOS do what Ryzen Master does, is that even possible?

 

[hotaru.hino]

I see, is there a way around this? It would be nice to just make the BIOS do what Ryzen Master does, is that even possible?

The only way is to find the minimum voltage where the CPU is stable enough when going at maximum turbo speeds.

 

[MooMetal]

The only way is to find the minimum voltage where the CPU is stable enough when going at maximum turbo speeds.

Ahhhhhhhhhh, it now makes sense!

I just changed OC to 4.2ghz and voltage to 1.1v as per Ryzen Master.
I guess that's a good starting point, so far Cinebench is back to 9500+ but it just failed the Prime95 stress test at 1 hour and 52 minutes in.

Going to up the voltage by a step and torture test again!

Appreciate the help!

 

[drivinfast247]

Ahhhhhhhhhh, it now makes sense!

I just changed OC to 4.2ghz and voltage to 1.1v as per Ryzen Master.
I guess that's a good starting point, so far Cinebench is back to 9500+ but it just failed the Prime95 stress test at 1 hour and 52 minutes in.

Going to up the voltage by a step and torture test again!

Appreciate the help!

4.2ghz is the max boost for that CPU! You're gonna have a helluva time trying to get an all core OC to be stable @ 4.2ghz. I believe you're gonna find it takes a lot of voltage to be stable at that speed.

 

[MooMetal]

4.2ghz is the max boost for that CPU! You're gonna have a helluva time trying to get an all core OC to be stable @ 4.2ghz. I believe you're gonna find it takes a lot of voltage to be stable at that speed.

Thanks for the tip, so far it's been stable for 2 hours on Prime95 at 4.2ghz and 1.10625v. Would you recommend I do a 24 hour Prime95 stress test?