Question VSoC set at 0.825V

[daoren123]

Hi. Having an issue with my PC for over 2 years. Recently noticed VSoC is at 0.825V.

PC:
Asus Prime B450M-A II
RX 580 8GB
Ryzen 5 2600x
2x8 GB 3200MHz RAM
2TB HDD
256GB SSD
550W CoolerMaster PSU

The issue is black screen, seemingly disconnected GPU, no input or output (audio), button reset not working, only solution is forcing PC off. No temperature problems. "Crash" happens mostly when playing a game that eats a lot of RAM/VRAM, or when under low load but with lots of things open, or when idling.

Got this reply on another forum:

That said, the specs you mentioned for your system definitely may be the cause.
Ryzen setups prior to the 5000 series did not fully support 3200MT/s speeds, and the lower end boards had even less chance of that working problem free.

Enter your BIOS
Enable XMP for your RAM, manually set SoC voltage (vsoc) to 1.10v then lower the RAM speed to 2966MT/s
In that exact order, no other.

What happens is that SoC is the link between your CPU and PCI-E lanes, while sharing power with the memory controller. Infinity fabric runs at the same speed as your RAM, so higher RAM speed means higher demands of the infinity fabric. Higher power needs (or errors) on the Infinity fabric can cause the PCI-E lanes to drop out causing a "GPU driver has crashed" situation or if the memory controller side crashes, a black screen lockup of the entire PC.

D.O.C.P. is disabled as well as any offset to VSoC. Temporary solution to reduce how often crashes happen is to underclock my GPU. Although even then, crash can happen, and did recently.

 

[kerberos_20]

button reset not working

no change in fan speeds after pressing reset button?

 

[daoren123]

no change in fan speeds after pressing reset button?

no. nothing happens. fans get a bit faster when screen blacks out, they slow down after a second or two.