yes.
everything below and other things:
- reset BIOS
- reconnected and swapped all cables and sata ports
- reset/remove overclock from cpu and gpu
- underclocked and overclocked GPU.
- tried RAM in single and dual channel, both sticks alone, higher timmings, xmp on and off. No good
- reinstall games
- reconnected the cables and gpu. no good
- check no to "fullscreen optimizations"
- energy options and set cpu to always 100%
- chkdsk
- memtest
- HPET on and off
- uninstalling msi afterburner and VFX audio enhancer.
- fiddling with windows crap (superfetch, telemetry etc)
- disabling cache shader
- FRESH WINDOWS install.