@John Naylor thank you for the answer
2. Yeah, had problem with it before. It's A2-B2-A1-B1 for this board
3. There are so many problems though and random solutions like disabling core scaling and such didn't work for me, I tried most of it
6. I ran it for 30 min and didn't had problems, guess I'll try it for 3 hours, but as I said it has never bsoded on heavy load, only during idle or low tasks like youtube
Also what ram should I aim for? Just the QVL list? Because I saw a lot of posts from people with exactly same problem and it didn't help them switching to the QVL ones. Is there some kind of fool-proof option?
I have never looked at a QVL list. It does help to use a upper tier RAM set as the profit margin allows more time and money for testing ... and they do want to keep their reputation. From the 90s till the and of DDR3, Mushkin was the go to option for those wanting the best quality kits, folks were hitting 1.94 volts with their overclocks which was a lot for the JEDEC spec was 1.5 (1.65 for XMP). The DDR3-2400 CAS 10 set in my old box used the same chips as Corsair Vengeance Pro ... at least up to version 4.51 ... then they switched to a cheaper module and peeps adding a 2nd pair suffered from the mismatch.
Mushkin lost interest in DDR4 it would seem, still have products but they rarely putout a shining starr so to speak and even then supplies are limited. These days we general stick with the upper tier stuff (3200 CAS 16 or 3000 CAS 15but none with the silly huge heatsinks or RGB stuff ... Corsair vengeance LPX like this. Granted ... not many of our users (2D / 3D CAD, Video editing and gamers) do AMD builds given Intel's advantage in these areas. But that CAD group also includes a segment that also doesn animation and rendering in which case they may have 9 Intel boxes for the CAD but they also have 1 box with AMD for the rendering and animation.
pcpartpicker.com
pcpartpicker.com
It's no secret that AMD builds have frequent issues with RAM in recent years .. and X570 has alleviated this to a significant extent. My thinking is that the replacement set of RAM will be fine ...
1. Clean slots with a foam swab dipped in 90+% isoprophyl alcohol /wipe RAM contact points with same
2. One installed (in correct slots), run memtest86+ **overnight** making sure both sticks in correct slots. If it passes, sounds like you are on ya way problem free.
3. If it doesn't pass, you have to determine ... is it a stick or is it a slot ?
a) Place Stick 1 in primary slot and test for full cycle
b) Place Stick 1 in secondary slot and test for full cycle
c) Place Stick 2 in primary slot and test for full cycle
d) Place Stick 2 in secondary slot and test for full cycle
You should now know which stick or which slot is problematic ... Since we started building PCs in early 90s, I'd say we have had about 1 in 15 instances of memory issues were because of a bad slot .. the other 14 times, it's a stick
4. make sure you swap the entire set, not just 1 stick .... never buy or replace sticks 1 at a time ... always use ONLY what arrived in same package.