Click in Hide Details
As I see it, it helps to get cleaner and easier to read.
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@anon49550872
Anyway it looks like my MSI X570 board has the exact same setup and settings.
Cool, testing time.. I’ve been browsing a lot, opening a lot of websites, video playback in high resolutions, everything feels the same as before regarding performance.
So, at this moment, I think this will be my settings from now on, just need more time to make sure that everything is working perfectly..
I closed the windows in my room, and I’m not sure if this is a some kind of a placebo effect, but I’m feeling that the RPMs are lower than before with this mode..
That would be perfect! I’ll just leave mine set this way also and run with it. I’m also on ECO mode 65W. This Ryzen 3800X is an awesome processor and i know the 5800X i have for the MSI B550 board will be even better.
Indeed, 3800x is awesome and 5800x would be even better.. 
The only thing I’m not doing is under-volting because i don’t know how to set it properly.
For B550/X570 chipsets and Zen 3 only, you just set a PBO curve, it is pretty straight forward.
This is also called as PBO2.
I did it with 2 clicks, you go to PBO settings in your BIOS, don’t enable anything, click in Curve optimizer, set a Negative curve clicking in Negative, then set the voltage you want.
Negative curve is kind of a offset for undervolt.
Positive curve is kind of a offset for overvolt.
You just need to make sure that it is stable with the new settings.
PBO2 is kind of a frequency / voltage curve.
For an example, taking all these numbers out of my head, you need 100mV to run at 1000MHz.
This PBO2 negative curve offset would decrease the voltage to run at that frequency.
These frequency / voltages are done in steps, so all frequencies would be reached with less voltage.
Not all chips are the same, silicon lottery sometimes can be a problem.
So, basically, CPU manufactures have a baseline in which all their CPUs needs to run stable, so they set a voltage curve and all CPUs needs to reach that mark.
Some are better than others, so a lot of CPUs can do the same work as others, but with less voltage.
I’m going to try this later. Right now I’m testing again. Hopefully i don’t have a train wreck like last time. 
This happened to me so many times that I lost the count already
I don’t have this menu? I’ll look elsewhere.
As far as I remember, you need ryzen 5000 series to be able to use it.. I’m 99% sure about this.
Oh okay…when i use the 5800X then maybe. 
Found a new tool, zenmonitor3-git.
With it, you can check the power usage of the CPU in Watts.
You can use it in conky, I’m almost there… I’ll soon post an image of it working with conky.
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CPU using less than 30W, GPU using around 10W, HDD sleeping…
$ sudo hdparm -B /dev/sdb
/dev/sdb:
APM_level = 127
$ sudo smartctl -i -n standby /dev/sdb
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.4.10-arch1-1] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
Device is in STANDBY mode, exit(2)
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