Just recently bought a complete SF2 champion edition, sold as working, but when it arrived it seem to have graphical glitches, a bit unsure of where I should start troubleshooting this, and is it a given that it's caused by the proprietary chip (I'v tried to read a bit around and understand these is a known weak point of these boards).
Uploaded a video that shows some of the artifacts:
Uploaded a video that shows some of the artifacts: