Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

So I plugged in a PCI card and know from the OS that the IO range is e400-e4f1 and the IRQ is 5. Will this change if I unplug other PCI cards from the same computer?

share|improve this question

It shouldn't matter if you're using a modern OS that supports Plug and Play. It should be able to detect the device properly at boot time, even if it has been moved to a different slot. If it doesn't, you can always put the cards back the way they were.

share|improve this answer
No I'm not using a modern operating system. – slipbull Oct 21 '09 at 15:30
@slipbull: "modern" in this case means pretty much anything after Win98. (it might even mean "Win95 or later" but i can't bring myself to admit that.) what are you running? – quack quixote Oct 21 '09 at 15:59
QNX4 -hate the 15 character minimum in comments- – slipbull Oct 23 '09 at 15:43
up vote 0 down vote accepted

Actually they do change.

edit: e400-e4f1 changed to c400-c4f1 when adding another card.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.