Ryzen R5 2400G high idle clocks

[GEHORC]

Hi,

 

i just built a system with an R5 2400G on an Asrock B450 ITX board with 2x8GB memory (no dedicated graphics).

When idle (0% to 1% load) the CPU is always clocked between 3.0 and 3.4 GHz and pulling ~22W according to HWiNFO.

Thats too much for my liking.

 

The bios is bone stock - not even XMP is activated.

The windows powerplans don't change anything - Balanced, Ryzen-Balanced and High performence - all the same in idle.

Only the power saving plan brings the clock down to 1.58 GHz - but it also stays there under load.

 

Right after setting up windows and launching HWiNFO for the first time I could observe power usage down to 5W.

So clearly it was working right once.

After that I installed all updates, Windows had for me.

I also had RyzenMaster installed briefly but didnt want to dive into it and unistalled it.

 

What could be the reason for that behaviour, what other setting can I check?

[KarathKasun]

This is normal for high performance settings in windows.

 

i7-2600k idles at turbo speed here unless I manually set the maximum CPU clock lower in windows power management or use the low power preset.

[Jurrunio]

Sadly Ryzen Master is the only software that reads all stuff properly, so you either use that or just forget about the whole thing.

[DrMacintosh]

Just ensure that Windows set to Ryzen Balanced and there is nothing to worry about. Ryzen chips are different from Intel chips in how they down clock. 

[GEHORC]

10 minutes ago, Jurrunio said:

Sadly Ryzen Master is the only software that reads all stuff properly, so you either use that or just forget about the whole thing.

I reinstalled RyzenMaster.

The frequency is the same that TaskManager displays: 2.98GHz

Is this the minimum the CPU will do in idle? I mean clearly it can go lower...

RyzenMaster displays 4-5W for CPU and SOC each.

After some happy cinebenchin' (CPU and GPU) I'm convinced, that the higher power readings in HWiNFO include the IGPU power.

(Though the individual values in HWiNFO still make no sense.)

 

Thanks everyone for the quick replies - I had forgotten that there were issues with analysis-tools and ryzen.

[Jurrunio]

Just now, GEHORC said:

Is this the minimum the CPU will do in idle? I mean clearly it can go lower...

Maybe. Ryzen relies more on shutting down parts of the CPU to save power rather than stepping down voltage and frequency.

[GEHORC]

Update:

After the Cinebench runs the CPU happily clocks as low as 1.58 GHz with the Ryzen-Balanced plan enabled.

Thats still not the lowest p-state but an improvement.

Whatever AMD ... you're drunk.

[KarathKasun]

8 minutes ago, GEHORC said:

Update:

After the Cinebench runs the CPU happily clocks as low as 1.58 GHz with the Ryzen-Balanced plan enabled.

Thats still not the lowest p-state but an improvement.

Whatever AMD ... you're drunk.

Windows background processes are enough to keep things from idling down.  If you run something CPU intensive, Windows tends to suspend background activity for a bit.

 

20w total CPU package power draw at idle with the iGPU being used is exceptionally low for a desktop, considering that most desktop boards do not have the same paranoid power management targets as a laptop.  Also, software sensors are never correct.