Anyone have any pointers for trying to get a VX board running stable at 75Mhz FSB? So far I’ve tried:

removing L2 cache
Intel and AMD CPU’s
Adjusting PCI/ISA clock ratio
Faster memory
Adjusting memory timings

I can usually boot into Windows but blue screen pretty quick. I can launch Quake straight from DOS but it usually throws an exception within a minute or less.

It may be that this IBM board just isn’t stable at 75Mhz FSB but wanted to check here for further ideas, thanks!