Sorgelig wrote:Minimig is one of few cores with metastability issues which i'm not able to fix yet.
Nothing wrong with your SDRAM.
Situation may improve if you use heatsink with fan.
I do have a heatsink and a small fan (from Jim Drew - cmbstuff.com) but my fan is not located directly over the heatsink due to logistics
I left the MiSTer off for several hours and did a cold boot before trying those programs, but I do think the artifacting gets even worse once the board runs for a while. Still, switching back to Minimig_20180304 (no matter how long the board had been running) corrects all of the artifacts and glitches but at the expense of all these nice new features you have implemented.
I'm going to try and reroute my USB hub so that I can place the fan directly over the CPU and see if that helps... this is what I'm dealing with:
Thanks for making this project possible