The idea - my idea - was that MDK is very close to playable on my Am5x86-133 Presario 425, and if I could get a Voodoo card in there (2xISA only) it might work playably in glide mode (I'm one of those guys who pushes hardware to it's limits).
Unless someone has another alternative idea, my current plan is to find a voltage regulator and see if I can get a Cyrix running at 133mhz in there, see if that runs faster due to superior FPU. My other idea is to design and build a Socket1->Socket2 adapter, allowing a Pentium Overdrive to run in this Socket 1 box.