The system is: windows 10 LTSB x64, Ryzen 5 2400G, 16gb ddr4-3000 ram (I tried running it at 2666 or even 2133, doesn't help). GPU is mildly overclocked to 1500 MHz (setting to 1250 didn't help), voltage is kept low at ~1.0875; CPB disabled to keep its ridiculous voltages away but CPU is at firstname.lastname@example.org (setting 1.4 didn't change a thing). Motherboard is Asus B450M-pro with latest bios (version 2006).
Switching from Divinity 2: original sin crashes the system, as does attempting to run 3dmark time spy (fire strike and skydiver run fine, didn't try other ones), and a couple time video playback in Chrome crashed. Memory is stable running memtests for hours, and reducing its frequency changed nothing... any suggestions what it could be?