FCLK in auto crashes the pc whit ryzen 7800x3D

[dashky]

Hello, my PC crashes when I start it from cold when I put the FCLK in auto.
I don't know if it happened to anyone else.
In the end, searching in the bios configuration I found that setting the FCLK between 1500 and 1600 solved the problem.
my CPU is ryzen 7800x3D on a ROG STRIX X670E-F GAMING WIFI

[Jiaszzz_ROG]

Hello, @dashky 

Thank you for your prompt response.
If you have any further topics related to overclocking settings, we recommend that you post your inquiries or create new threads in the "OVERCLOCKING & TWEAKING" section for related discussion.
Thank you for your support and interest in the ASUS motherboard and hardware performance.

[dashky]

The RAM crashed again at 6000mhz even when I raised the voltage
only supports 5600mhz
or disable automatic CPU and RAM overclocking

[Silent_Scone]

Hi @dashky, 

Have you tried EXPO II? Should relax some of the memory subsets, may help stability.

[dashky]

crashes the same
AMD has a problem with automatic RAM overclocking I think

[Silent_Scone]

Unfortunately, there is no such thing as automatic RAM overclocking despite what marketing tells us, as the CPU IMC is a large variable. 

In the UEFI, inspect what the auto rules are applying for VSOC, and increase incrementally. Note that it is not possible to exceed 1.3v [realtime voltage, voltage measurements for the SIO may read higher]

[dashky]

The SOC voltage in automatic is at 1,280
and the CPU is less than 1 volt in automatic
when it crashes the event viewer says error in kernel-power

[Silent_Scone]

Yeah, sounds like a weak fabric, unfortunately. You'll need to see where you can dial into. Set EXPO II and see which memory ratios you're able to stabilise. Use TM5 or Karhu RAM Test to test stability.

[dashky · Accepted solution]

I have been testing for a few days and I have set the RAM to 5600mhz with a voltage of 1,250v and the FCLK to 1400mhz and it already seems stable
and I consider the issue resolved
thank you

[dashky · Accepted solution]

In the end I had to put a cap on the turbo frequencies of the processor
I have set it to 4.7ghz and so far it is working fine without needing to touch any other settings.
The problem was that the stock gave peaks of 5.0ghz and the processor did not support them.

[dashky]

I have seen in the technical data sheet of the processor that the maximum speed it supports is 5200 MHz, I think I can feel lucky if I can get it to work at 5600 MHz stably.