I'd like to extend my 486 ISA PC that has onboard HD/FD controller. I set in a second ISA multi i/o contoller card and the system doesn't seem to tolerate it: it locks up immediately. I guess, it is so because the system doesn't recognise that this is a secondary controller. Unfortunately the documentation of the card doesn't state anything about configuration as a secondary controller. Has anybody a suggestion to me? TIA Tibor Mocsar Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://nospin.com/pc/pcbuild.html