Ok another update
The software fix worked, but caused the PC to restart quickly after running the emu. The problem with the k5s7a is; the bios has a bug which makes it hang with sse enabled, that's the reason why it's disabled in the bios.
Very nice, thanks ECS. Well you get what you pay for

But anyway there is a way to get it work! There's a firmware from the k7s5a Pro u can flash, it enables sse and works stable here.
Filename is: oc1209b.zip . Yes you are burning a Pro bios to a 1.x or 3.x revison non pro board, but it works. I found that info on some k7s5a forums.
Works great here, but use at your own risk
