Fastest pc motherboard with isa slots?

[Forcie]

Motherboards for consumer use with 3 ISA slots stopped being common in the Pentium 2 era, so that is probably what you should go for. If you are OK with 1 ISA slot, the fastest systems with a DMA-capable ISA bus should be Pentium 3 Tualatin (up to 1,4 GHz). Maybe there are some P3 systems with 2-3 slots if you look carefully. I run a Tualatin system as my main DOS/Win9x machine with an ISA sound card.

Industrial motherboards are a different business. Even P3 and P4-era industrials come with 3-4 ISA slots. There are modern (and expensive) industrial PC motherboards with Core2Duo and faster CPUs and ISA slots. The ones I have tried did not support true ISA DMA though.

[Forcie]

LGA775 mobos with ISA slots exist that'll handle at least FSB 1066 C2Q CPUs.
For example http://www.adek.com/ATX-motherboards.html

Exactly what I referred to in the second post in this thread. I own a MB-P4BWA. As I said and the page clearly states, it does not support ISA DMA.