NT having problem recognize two 3COM NIC cards

I had an NT server 4.0 with two 3COM NIC cards installed. The first one (3c509b) installed fine.  However, after I added and binded the second one (3c509), it didn't start.  The event log reported event ID 5001(Could not allocate the resources necessary for operation).  3COM support site suggested that I tried different PCI slot.  It didn't help.  

Another 3COM tip suggested that I swapped the slot number in the registry \\local machine\system\current control set\services\elx1\parameter (slot 11) with the good card (elx2) which is slot 13).  When I did that, elx1 works and elx2 stopped working.  I tried different combination of slots but couldn't get the second card to work.  

Wonder if anyone has run into with problem with 3COM NIC cards when setting up their multihome NT server?
dquachAsked:
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dquachAuthor Commented:
Edited text of question.
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Tim HolmanCommented:
I've had this combo up and running before.
Try installing the older card first, into the first PCI slot, then the second.
Check in the BIOS that all settings are OK - disable plug and play.
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3408Commented:
Did you fill in the Ethernet ID (=MAC address=physical address)?
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You need to do this or both drivers will point to the same NIC. If you haven't done this, the second NIC (the one that was detected the latest(not necesarily the second one you plugged in)) won't work. It is even possible none of them will work due to conflicting drivers.
Anyway, just fill the in (network->adaptors->properties)

3408
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cpicknellCommented:
If the error message was "not enough server storage", then the solution is simply to re-install an NT service pack
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3408Commented:
Cpicknell: When you're not sure the answer is correct (and you obviously aren't because you start your answer with IF), you should stick to comments. This way others can help Dquach as well. And isn't this what we all want to do??

3408
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dquachAuthor Commented:
Actually, I tried Tim Holman's suggestion but it still didn't work.  I wanted to test 3408's suggestion but I couldn't get into the adapter's properties for some reason.  Cpicknell suggested a solution to a different problem.  In any case, I found an article in the 3COM knowledgebase.    Apparently, in the case of a Tyan motherboard, the 3COM cards only like PCI slot 1 and 2.  I relocated my video card to PCI slot 5.  It's working finally.  Thanks all for your help.
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pete_perryCommented:
This was probably because 3Com has default settings (and yes cards can over ride the BIOS) and one was using something elses resources, this is typical if the card doesn't support or doesn't have bus mastering enabled.
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cmarks55Commented:
ok, something isn't right here with your setup.  According to 3com, the 3c509 is an ISA CARD.  The PCI cards are 3C900 and 3C905 - so the problem is that you are using the wrong driver.  If you have PCI cards, then you have 905 or 900, not 509.
See for yourself:
http://www.3com.com/products/dsheets/400230b.html
http://www.3com.com/products/dsheets/400250b.html
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Tim HolmanCommented:
I was on the right track then !
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dquachAuthor Commented:
Tim Holman,

Yes, you are on the right track.  Although it didn't work the first time I tried it, I guess you have to have the exact combination.  I have to try different combinations and finally, it works when the two NIC cards were in the first two slots and the video card in slot 5.  

I should have gone back and re-evaluate your suggestion and grade them sooner.  I apologize for that.  
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