3Com 509B Ethernet card working in Windows but not in Linux

[Patrick Colbeck <pat.colbeck@esc.azlan.co.uk>]

I have used these cards with RedHat and Debian with both 2.0 and 2.2
kernels and they work fine. One thing to look out for is that they are 
ISA cards with some plug and play functions. The plug and play
functionality is useless. Get the 3c5x9cfg program from the dos
intsallation disks that come with the card. Boot your PC and go into
BIOS setup. Next go int the Plug and Play settings and reserve an
innterupt for non plug and play cards. Boot to DOS and then run the
3c5x9cfg program. There should be an option to manualy setup the card, 
turn of plug and play and then set it to the interupt that you
reserved in the bios setup. It should work fine then so long as you
have the correct module to load or compile the drivers into the
kernel.

Pat