Spikes in SOC voltage 7800X3D

[Blue Panadol]

Hey guys, so a few weeks ago i manually set my SoC voltage to 1.2V since i noticed it was a bit high on auto (1.25V), however ever since playing bo6 i noticed weird large spikes even though I manually set the voltage. Is there a reason for this? I believe it should have something to do with the Load line calibration but I'm not sure how to stop it from spiking to such a high level. Any help is appreciated.


I also noticed some weird behavior with my FCLK and UCLK frequencies, they are set to auto in the BIOS and the frequency isn't flat 2000MHz, 3000MHz.
I should also note that the motherboard is the gigabyte B650 Eagle AX, bios version F4

 

[Martin]

This is a different case than the double-value spikes. FCLK/UCLK are based on bus clock (BCLK), so if that's not exactly 100 MHz, then you'll see a similar difference.

 

[Blue Panadol]

This is a different case than the double-value spikes. FCLK/UCLK are based on bus clock (BCLK), so if that's not exactly 100 MHz, then you'll see a similar difference.

I see, so then would BCLK also cause this ~6% increase in SoC voltage ?

 

[Blue Panadol]

I did a bit of research and I'm seeing that the variations in BCLK is due to spread spectrum. I haven't encountered the option to disable spread spectrum but from what i understand the function itself shouldn't be an issue. I still don't understand why my SoC voltage, VDD Miscellaneous, and global Freq. Limit has this weird spike of ~6.5% I'm hoping this is a reading error and not an actual voltage spike. Any feedback on this is appreciated, thanks.

 

[Zach]

This is a different case than the double-value spikes. FCLK/UCLK are based on bus clock (BCLK), so if that's not exactly 100 MHz, then you'll see a similar difference.

I see, so then would BCLK also cause this ~6% increase in SoC voltage ?

It’s been a while (months) since I’ve seen the double misreported values.
But occasionally I have the plus ~6% mostly on FCLK, UCLK, MCLK. Very rarely on SoC voltage too.
It must be a bug like the double ones. It’s not from BCLK for sure.

R9 5900X