What the heck is wrong with my build?

[Curio]

Of all the machines I've built down the years, this one is by far the most unreliable and biggest pain in the caboose. It just constantly CTDs. Some days it doesn't do it at all. Other days it's every few mins.

Started life with a Radeon 570 which I figured was bad so got a 1650 Super. Still had issues. Since then it's had a new PSU (Seasonic 650w), new RAM and new mobo. Still happens.

Not overheating. Reinstalled Windows. Tried every video driver known to mankind. Chipset drivers. BIOS versions. Data cables. Power outlets. Power cables. Surge protectors. Every setting in Windows and video drivers I can find.

Worse Still, event logs show NOTHING in application or system and there are no errors (usually) when it crashes. If there is an error it's usually the video driver crashing.

The only clue is that it nearly always seems to crash when loading a game level or just after a game has loaded. It rarely crashes while actually playing. The only thing I can think of is a bad SSD. I have 2 SK Hynix Golds - one for OS and one for installs. They check out fine with SMART tools and various stress tests. But it's the only thing left I haven't swapped. Or the Ryzen CPU, which seems an unlikely suspect.

Anybody got anything I could try? Known issues I'm unaware of? Thanks!

 

[Curio]

Thanks for all the suggestions, chaps.

With the new mobo (ASUS B450) I did make sure both the Ryzen and the exact RAM model were on the QVL. I will try messing with some of the CPU settings in the BIOS though.

I did forget to mention that I don't overclock this rig at all. In fact, I've even underclocked the video card a little. The RAM has been tried at both default settings and XMP profiles.

It's a frustrating problem because sometimes it can be stable for a while so it looks like I found the issue. Grrr.

Worst game by far is SW Battlefront 2 - some days that crashes almost constantly when loading in a map. Doom Eternal I don't think has ever crashed that I can remember. Everything else crashes out at least once per session. But again, some days are better than others. I'm starting to think it depends which way the wind is blowing...