There are some boards and BIOSes that don't apply the correct voltage to the memory on boot. So the DDR4-3200 specced memory is getting 1.2V instead of 1.35V which it needs for that rated speed. It's not the CPU, it's the board. Especially if you have Samsung B-die you are not supposed to be having an issue with memory.i tried upgrading from a 1700 to a 3700x and my system wouldn't even boot properly, was always restarting by itself.
Got into the bios once and one time into windows, but it was buggy and unusable.
BIOS was resetted and on P5.70, my RAM on standard settings (F4-3200C14-8GFX).
i am returning the CPU and will maybe try again when a stable bios is released with newer AGESA.
Or i will just get a x570 when there are more ITX available, just the gigabyte right now.
1. Update AMD AGESA Combo-AM4 126.96.36.199 ABB
2. Improve Destiny2 gaming experience with Matisse CPU.
*ASRock do NOT recommend updating this BIOS if Pinnacle, Raven or Summit Ridge CPU is being used on your system.
*This BIOS does NOT support following Bristol Ridge CPU due to the limited BIOS ROM size: Athlon x4 970/950/940, A12-9800/9800E, A10-9700/9700E, A8-9600, A6-9550/9500/9500E
*Before updating this BIOS, please also read the description in previous BIOS version.