"Industrial" boards frequently offer interesting connector options, but otherwise they will have similar performance and power consumption to regular boards with same components. This would probably perform identically to an AOpen consumer board with So479, which means better IPC and lower power consumption than contemporary P4 systems, but nothing really special compared to later C2D or earlier P3 (Tualatin) systems.

That said, native CF is very nice if you want to run the sort of OS that fits on CF. As for ISA, the question is which bridge chip it has - does it support DMA? IIT bridges usually do, this one has Winbond 83628, 83629 - I'm not familiar with them.

Seems to be a gamble : Could this be the ultimate fastest system with pure dos sound support?
I was aware that power consumption is more or less the same between consumer and industrial mainboar.
I was rather meaning a Pentium M using 21W is a relativerly low power and for DOS /9x / XP a capable processor?
But I guess I got enough hardware already 😁 if anybody else is interested and willing to take their chances with ISA support.
It's listed for 80€ on a well know internet auction site under "Mainboard IBASE MB892 2x ISA,,AGP,IDE,SATA,VGA,PCI,RS232"