Ryzen PC crashing at idle or semi-idle

Fixed freeze on idle with AMD Chipset Driver installed on Asrock B450 Pro4 R2.0 with AMD Ryzen 5 1600 Pinnacle Ridge (problem after Windows Update).

Have you tried running your RAM at 3000mhz? (or slower)

Every since I got it 5 months ago, it crashes at least once per week up to 2-3 times a day. It will crash once and then probably crash again after 5 min, and again after 5 etc. Never under stress or gaming, I was running my CPU at 100% for 40+ min and it never crashed. I ran a memory test for 1+ hours and 0 errors. Pc is all new. Happens in Linux and Windows as well. No bad sectors but it says 99% health for some reason (the SSD is 5 months and has some stuff written on it, etc so I guess that makes sence).

MB: ASRock model: B450M Pro4 serial: UEFI: American Megatrends Bios: P3.50 date: 07/18/2019, this is the last stable BIOS possible for this gen CPU and the next 2 are not recommended, although it came with 3.60 and I tried 3.90 as well, still crashing! Mouse freezes, Last sound goes on repeat, then a black screen and I have to restart it manually.

Cpu: Ryzen 5 1600 AF

Ram: G.Skill AEGIS 2x8 3200 16GVKB

PSU: Superflower 600w bronze king

SSD: Kingston a2000 500gb m.2

GPU: Powercolor RX580 4GB

I tried the usual fixes that pop up in the internet: Disabled C states, Overclocked it, Upped the CPU voltage, made it run on 3.7ghz and 1.125 voltage (Default) without undervolting by disabling Cool and quiet, Disabling the last 4 p-states, Changed voltage to typical current load, Windows power plans, disabled C-states in Linux by script, Custom grub options, etc. etc. Right now the other voltages a bit by offset and trying different mouse and keyboard, well into wild shot territory. To be clear never saw a BSOD, only black screens. No error logs in Windows. I also tried running Windows with updates, without updates, with all MB drivers, with only GPU drivers, etc.