Question CPU high voltage on auto.

[wizacss]

Hello,

I recently noticed that my 3200G, while gaming, even on not so heavy games, reaches 1.5v core voltage, and accordingly the temps go up too, even reaching 80-85 on heavier games, almost reaching 90 while benchmarking.

Everything in the BIOS is on auto, except for a little oc on the iGPU (1650mhz at 1.2v).
My mobo is a B450 Gaming Max msi, the CPU cooler is the AMD stock one, except for the thermal paste.

I read on some forums that the 3200G shouldn't go higher that 1.4v, so I'm kinda confused why the mobo pushes it higher.
I have to mention that on idle the voltage is around 1, pretty stable, temps around 40c.

I recently updated the chipset and the bios version, basically everything's up to date, the windows power plan is on AMD ryzen balanced.
My CPU-fan runs 55% under 55c, 77% on 65c and 100% on 75c

Thanks in advance!

HWINFO64 screen:

https://imgur.com/pVIbdIc

View: https://imgur.com/pVIbdIc

 

[wizacss]

You do realize that the igpu is part of the cpu, it's not a seperate entity. The igpu has little cache of its own and zero vram, so relies on the system ram for any virtual vram usage, which goes through the cpu, the memory controller.

Considering both cpu and igpu are in part symbiotic, gotta be careful when looking at voltages, you shouldn't take Ryzen Master word for it. The cpu will only use whatever it needs, the cores are not being force fed the full 1.55v.

That's where you'll need to look at HWInfo, to see exactly what the cores are using, not what's supplied because part of that voltage is going to the igpu to sustain the OC, part of that being increased LLC.

Well yes, but the strange part is that when I OC'ed the iGPU though the BIOS, not only it showed me higher voltages and temperatures on the CPU, but also the CPU clocks could reach around 3900, while before the iGPU OC they can only reach 3700 under full stress.

 

[Karadjgne]

Because the cpu needed more to keep up with demand from the igpu. Seperating igpu and cpu isn't exactly cut-n-dry, there will be added voltages to LLC as the igpu and cpu have changing workloads, more stress on memory controller etc. To OC the igpu is basically also OC the cpu when too much is left on Auto.

 

[drea.drechsler]

Because the cpu needed more to keep up with demand from the igpu. ...

Keep in mind OP's CPU is hitting 1.52V when he does this (look back a bit in thread). This is also a 3200G with CPU based on Zen+ arch which should not be seeing more than 1.425V, 1.45V absolute max in light load scenarios. 1.526V is clearly dangerously high even if it's 'normal' to do so when enabling iGPU AutoOC.

 

[wizacss]

Keep in mind OP's CPU is hitting 1.52V when he does this (look back a bit in thread). This is also a 3200G with CPU based on Zen+ arch which should not be seeing more than 1.425V, 1.45V absolute max in light load scenarios. 1.526V is clearly dangerously high even if it's 'normal' to do so when enabling iGPU AutoOC.

Just a correction, I'm not activating any iGPU AutoOC, I'm manually OC'ing the iGPU at 1650mhz 1.2v

 

[drea.drechsler]

Just a correction, I'm not activating any iGPU AutoOC, I'm manually OC'ing the iGPU at 1650mhz 1.2v

hah...i've gotten a bit confused along the way. still, i have to think 1.526V is dangerous high regardless of the cause.