Some games get weird with very fast CPUs, but that's basically it as long as you have enough ISA and PCI slots to accommodate any cards you want to use.

One game that I remember having speed issues back in the day was Daggerfall. On a Pentium 200 MMX it mostly ran fine, but on a P2 400 there were some things that seemed to be glitched due to the CPU speed. The most obvious problem was that the sound effects in many situations were messed up. Like the guards yelling "HALT!" would repeat several times per second on the faster CPU, which would drive you NUTS when there were lots of guards around. Or riding a horse... the hoof sounds would some times do this crazy rapid sputtering sound rather than the normal paced clop-clop they should have. I'm pretty sure this was related to the CPU speed, though admittedly its been 17 years...

No doubt there's some use for Pentium class machines if you want to cover everything. Especially so as you're also covering the later 486 library with them.

One quite common issue is the "Error 200" bug, which has its cutoff at P2 grades or a bit higher with AMD chips. It stops several DOS games from running, even fairly late ones that benefit from Pentium level performance. There is a hack that you can apply to fix the executables, though.

OP: since you have a Socket 370 board, I'd check with the latest BIOS update to see whether a VIA Cyrix Ezra-T or Ezra CPU is compatible. If so, you can even ditch your 486 because of the flexible speed range provided by this platform. It won't be as fast as a P933, but then there are better platforms for that era of games needing 3D acceleration...

If you care about some speed-sensitive games ranging from 486 to P200 (E.G. Magic Carpet ~ P 60, Wipout XL/ 2097 ~ P200), then the P3 isn't suitable. Some will recommend Throttle to slowdown a P3, but this has glitches due to not being a smooth hardware slowdown technique.

I wouldn't toss anything but honestly just keep them and lose something less important 🤣 as hardware is only getting harder to come by these days.There is little to no guarantee what is cheap and easily available today will remain that way in the years to come so it will be wise to hold onto what you got. Remember those 3DFX cards that used to be so easily had for less than $10 a pop and look at what the go for now as it is rather depressing.

I guess there is never any magic bullet system that gets it all, I was afraid of that. I have heard of the borland 200 error on faster cpu's. While I know this is an issue for pure dos, does it still apply if it runs the dos app under windows 98?

I haven't played daggerfall, but I will try to see how it runs on the various systems with the sound issues.

I think back myself on all the hardware I threw out not thinking that I would ever want or need it again, and it turns out everything kinda went full circle. I am way more interested in older hardware than I am with the latest greatest thing they are currently coming out with. Makes me wish I had saved my first PC I owned. I agree, older hardware is getting scarce. All I find now that is surplus at places I work for is piles and piles of socket 775 systems.