- Ryzen 5 1600
- GTX 1660 Ti
- 16 GB DDR4 3000 MHz RAM
- Win10 2004 on a SATA3 SSD
sfc /scannowfound nothing
- Malwarebytes, ESET – neither found anything
- Crystal Disk Info reports every drive as either
- Clean reinstall of Nvidia drivers didn't help
- De-dusting did not help
- Windows' built-in memory diagnostic found nothing
- Entering text sometimes caused the text to not appear as I typed and catch up later, making letters appear near-instantly
- Games were laggy as well, despite running at solid 30-60 FPS without any spikes or dips
- Moving windows around made the window with a copy of the cursor placed on it move slower than I actually moved my mouse. When I let go, I was free to move my cursor however I wanted, and the window with the copy of my cursor did its own thing
- Trying to record it with ShareX produced perfectly normal footage, as if nothing was wrong
As trying to record it, again, ended up with perfect footage, I had to record it with my phone for the stutter to be visible.
I also recorded the output of OpenHardwareMonitor, which didn't seem anything out of the ordinary. The graph, however does look oddly choppy. Still, it never seems to have exceeded anything I'd consider normal.
I admit, I'm at a loss. I used to be able to play Witcher 3 on High/Uber without a hitch, now it's borderline unplayable. Other, less demanding games (Warframe, Paladins) don't seem to be affected.
Also, first time I tried to boot up W3, I was met with
DPC_WATCHDOG_VIOLATIONbluescreen. A restart later, no such issue. A driver reinstall later, no issue either, except a video on YouTube I was watching froze and started emitting the last 0.1s or so of sound on a loop. That was followed by a freeze, and hard reset. After the hard reset, no video issues.