SiS Mirage 3 on x86

Seems like you are out of luck. SiS is even more horrible than Intel GMA back in the days.

Yep. I made a backup copy just in case. Installed w7 and it works perfectly. Those SiS cards are the worst cards I have ever seen. I have installed w10 on several ancient Intel GMAs and I haven't run into any issues.

Whoops!

It seems w7 was working fine at first but whenever it was doing ANY task, cpu would get at 100% and stalled.

I have just plugged in a PCI-E GeForce8 I had (low profile); restored w10 backup and vòila, everything is running pretty fine.

That's SiS' horrible driver.