Pc reboot / 5i25(6i25) & 7i77

Our old pc hardware on Lathe got broken and we got some other older pc hardware to test with. Everything is running ok with AMD FX-4300
setup. That pc hardware is also very old so, we deciced to upgrade it AMD Ryzen 5 5600G. Software is starting ok and Linux etc. is working ok
also latency test is running ok. When we start the Lathe software, pc restart and there is no error messages in any log?

We got another older pc to test and everything is working ok on AMD Ryzen 5 1600 pc. We even tested newer cpu (Ryzen 5 5600G) on Ryzen 5
1600 motherboard and same issue, pc reboot when starting lathe software. Same motherboard and hardware with Ryzen 5 1600 is working ok.
Motherboard for those test was asus prime x370-pro (compatible for ryzen 5 1600 and ryzen 5 5600g)

First line in setup witch reboot the pc is: addf hm2_5i25.0.read servo-thread (if we comment that line out, software start(no reboot), but not
working ok).

Now we are out of ideas why this reboot happens and is it possible to fix?
 

Thank you for your quick response!

Prime x370x-pro motherboard has bios version 6042 and we can update it to next week. At the moment we have another (newer) motherboard
to test with. Asrock Phantom Gaming 4 B550M and it have bios version 3.40 [2024/1/23] (latest stable version) and with this setup we still have
reboot issue with Lathe software. Should we go with beta 3.41 (Update AMD AM4 AGESA Combo V2 PI 1.2.0.C)?
 

Ok, we stay with 3.40. Those two different test pc have own power supply. Both are 650w and different brand.

Here is list of hw what we have tested with this reboot issue.


* Asus M4A77TD (AMD770) / Athlon II X2 250 + 5i25/7i77 works ok

* Asus M5A78L-M LE / FX 4300 + 5i25/7i77 works ok

* Gigabyte GA-970A-DS3P (rev.2.x) / FX 6300 + 6i25/7i77 works ok

* Asus Prime X370-PRO / Ryzen 5 1600 + 6i25/7i77 works ok

* Asus Prime X370-PRO / Ryzen 5 5600G + 6i25/7i77 reboot issue

* Asrock Phantom Gaming 4 B550M / Ryzen 5 5600G + 6i25/7i77 reboot issue

* Asus Tuf Gaming B550-PLUS / Ryzen 7 5700X + 6i25/7i77 reboot issue


After those tests, it seem that amd zen 3 processor is common hw when reboot issues occur.
All motherboards have latest stable bios installed.

Any ideas?
 

Tested with LMDE 6 with lastest updates and still reboot issue when starting linuxcnc with 6i25 + 7i77 & lathe hw attached.
No error messages, kernel log just show normal messages and then booting up information. What to do next?
 

-Check if the ram memory is detected correct in the bios.
-Replace ram memory, check cpu temperature (old thermal paste?)
-Another/Newer kernel
-maybe it's just a defect in the mb or cpu