Need help undervolting Ryzen 5 3600 :: Hardware and Operating Systems

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검은 비 Apr 23, 2020 @ 4:38pm

Need help undervolting Ryzen 5 3600

I am new to undervolting so I really don't know much except that Ryzen Master is used for these things. My CPU is getting a little bit hot on idle (40 - 67c) and when I game and use cinebench it stays around 75c. I noticed on hwmonitor that the VCore is set to +1.4v and the cores are running at 4200 MHz. I was wondering how to undervolt in such a way that it decreases my CPU temps and does not affect my performance. I also want to note that I heard XMP affects AMD CPUs so I did enable A-XMP in BIOS. Other than this, I haven't touched anything.

Also, is it possible that this problem can affect my computer's freezing problem? Like when I'm downloading, it'll freeze my screen for several seconds and then go back to normal. I don't think it's a storage problem though.

Specs:

Ryzen 5 3600
MSI B450 Tomahawk Max
MSI 5700XT Gaming X

HWMonitor (CPU info): https://prnt.sc/s4xknz

Last edited by 검은 비; Apr 23, 2020 @ 4:40pm

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Showing 1-15 of 20 comments

ugafan Apr 23, 2020 @ 4:53pm

https://youtu.be/5JTuxMnrqds?t=99

검은 비 Apr 23, 2020 @ 5:03pm

That really helps on what to do in Ryzen Master but I don't know what settings to use if I wanted something like 3.8 MHz instead of 4.2 MHz.

Bad 💀 Motha Apr 23, 2020 @ 5:33pm

Never make changes via Ryzen Master. Use that for monitoring only, make such changes inside the bios.

Dont lower any clocks. Leave the clocks and turbo alone. Just lower the cpu voltage to help it run cooler. Once you reach a point where the system; won't boot, won't load into the OS, or crashes during a stressful app, reboot and up the cpu voltage slightly until it's fully stable again.

Before making any such changes do the following first...

Update to latest non beta bios version.

Wipe amd drivers via the ddu app via safe mode.

Download and install amd am4 ryzen chipset drivers from amd.Com

Reboot after done and apply the amd profile from Windows control panel > power options

Last edited by Bad 💀 Motha; Apr 23, 2020 @ 5:38pm

검은 비 Apr 23, 2020 @ 5:44pm

Originally posted by Bad 💀 Motha:
Never make changes via Ryzen Master. Use that for monitoring only, make such changes inside the bios.

Dont lower any clocks. Leave the clocks and turbo alone. Just lower the cpu voltage to help it run cooler. Once you reach a point where the system; won't boot, won't load into the OS, or crashes during a stressful app, reboot and up the cpu voltage slightly until it's fully stable again.

Before making any such changes do the following first...

Update to latest non beta bios version.

Wipe amd drivers via the ddu app via safe mode.

Download and install amd am4 ryzen chipset drivers from amd.Com

Reboot after done and apply the amd profile from Windows control panel > power options

Yeah I have installed it already and i set the power option to "ryzen high performance." With some fumbling around, i disabled PBO. I also read something that 1.4V isn't bad because it's not always at 1.4V and it'll use less voltage when under load (?) So, should I just leave it at 1.4V and don't mess with any settings?

Jamebonds1 Apr 23, 2020 @ 5:47pm

Undervolt damage is the least common, but I wouldn't recommend it if you don't have any experience with that. If doing wrong, undervolt can harm VRMs and/or CPU, due to stressed driver caused by voltages to currents.

Last edited by Jamebonds1; Apr 23, 2020 @ 5:52pm

SoldierScar Apr 23, 2020 @ 5:47pm

Ignore ryzen master. There are 2 solutions i would suggest:

1. Go into bios, set the cpu vcore at 1.325 or lower and find a stable all core frequency for the selected voltage, start with something easy like 4.1ghz, run benchmark like cinebench if it passes increase it by 25mhz, repeat. If you get a crash, bsod or your pc just restarts go one step back.

2. Leave the cpu at stock settings and undervolt it with vcore -offset, again go in slow increments and test in cinebench after every change you make.

If you use the default cooler i dont you will make drastic changes in temp unless you underclock it under 4ghz.

Last edited by SoldierScar; Apr 23, 2020 @ 5:50pm

검은 비 Apr 23, 2020 @ 6:09pm

Is there a way that I can just leave it at pre-unlocked settings like 3600 mhz and whatever the voltage is with it? I don't like to do overclocking I just wanted to know what the voltage should be at for 3600mhz.

Bad 💀 Motha Apr 23, 2020 @ 6:18pm

If you set vcore to 1.4 volts, it might stay there. If you want it to be dynamic based on clock dynamic changes and cpu loads, then it needs to be on auto. What you can do while vcore is on auto is change the cpu offset + and - offsets

If you don't want the auto OC then you must disable Turbo.

But that should be left on to give you the highest possible clocks when the load increases. Setting the cpu locked below the turbo speed is pretty dumb as you are forcing the cpu you paid for, to run slower then it should by default.

It's like buying a V8 engine car and never using that potential whenever driven.

Last edited by Bad 💀 Motha; Apr 23, 2020 @ 6:21pm

검은 비 Apr 23, 2020 @ 6:21pm

What is cpu offset? I read people were doing something like a -.5 or something on it.

Jamebonds1 Apr 23, 2020 @ 6:21pm

The VRM will change between 1.2v to 1.4v on auto, depend on performance. CPU offset mean something you change from the normal work voltage.

Example:
CPU Voltage: 1.4V
CPU Voltage Offset -0.05V

Mean CPU Voltage will be 1.35V.

Last edited by Jamebonds1; Apr 23, 2020 @ 6:31pm

#10

검은 비 Apr 23, 2020 @ 6:22pm

Originally posted by Jamebonds1:
The VRM will change between 1.2v to 1.4v on auto, depend on performance.

So should I just leave it as is?

#11

Bad 💀 Motha Apr 23, 2020 @ 6:23pm

Read an OC tutorial for a Ryzen board of the same model you have or one that is very similar to it. It's much to explain in here.

Plenty of written oc guides and online video guides for all of this.

Since you don't plan to OC your cpu higher, best bet is just leave all the cpu settings in the bios alone.

#12

검은 비 Apr 23, 2020 @ 6:27pm

Originally posted by Jamebonds1:
The VRM will change between 1.2v to 1.4v on auto, depend on performance. CPU offset mean something you change from the normal work voltage.

Example:
CPU Voltage: 1.4V
CPU Voltage Offset -0.5V

Mean CPU Voltage will be 1.35V.

ohhhhh okay that makes better sense. So instead of setting an actual voltage you just set an offset instead?

#13

Spec_Ops_Ape Apr 23, 2020 @ 6:30pm

Originally posted by Jamebonds1:
The VRM will change between 1.2v to 1.4v on auto, depend on performance. CPU offset mean something you change from the normal work voltage.

Example:
CPU Voltage: 1.4V
CPU Voltage Offset -0.5V

Mean CPU Voltage will be 1.35V.

Your math is a bit off. 1.4 - 0.5 = 0.9

Last edited by Spec_Ops_Ape; Apr 23, 2020 @ 6:30pm

#14

검은 비 Apr 23, 2020 @ 6:33pm

Originally posted by Spec_Ops_Ape:
Originally posted by Jamebonds1:
The VRM will change between 1.2v to 1.4v on auto, depend on performance. CPU offset mean something you change from the normal work voltage.

Example:
CPU Voltage: 1.4V
CPU Voltage Offset -0.5V

Mean CPU Voltage will be 1.35V.
Your math is a bit off. 1.4 - 0.5 = 0.9

He was probably taking from what i said before i meant to say -.05 not -.5. My bad

#15

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