If you're installing a second NIC, you may experience a problem.

Discussion in 'Server Networking' started by Mike Hall \(MS-MVP\), Jan 10, 2006.

  1. Also, some motherboards sporting integrated LAN don't like other NIC's being
    installed.. more often than not, the integrated card has to be disabled in
    Mike Hall \(MS-MVP\), Jan 10, 2006
    1. Advertisements

  2. Mike Hall \(MS-MVP\)

    xfile Guest


    Just to share with you for something I just learned and many may not aware
    of it:

    If you're installing a second NIC, you may find Windows (Server 2003 or XP)
    may not recognize it (not list in device manager) or has it listed with a
    yellow exclamation mark.

    If that happens and you're sure the NIC is good, you may wish to change it
    to a different PCI slot before doing something else, such as find a new
    driver, calling vendor, returning the card, and so on.

    It turned out that some (or all, for which I don't know) motherboards will
    have resource conflicts at certain PCI slots due to resources sharing.
    Well, I don't know specific reasons and how they do it, but that's how I
    have learned from Asus.

    So changing it to another PCI slot could solve the problem.

    That happened to us when we were trying a second NIC card. After we moved
    the card from slot 2, slot 3, to slot 5, it works out fine.

    We did turn off the onboard LAN chip just to ensure the second card would be
    detected when we changed it to a different PCI slot.

    Interesting enough, even the vendor of NIC (ZyXEL in this case) did not know
    this could be a problem and we shared with them also after we found out and
    solved the problem.

    Hope this helps those who will be installing a second NIC in the future.
    xfile, Jan 10, 2006
    1. Advertisements

  3. Mike Hall \(MS-MVP\)

    philo Guest


    Although I've never had a problem installing a 2nd NIC in XP...
    I have *never* been able to remove it in device manager (show hidden)
    if I physically remove the card from the machine.

    I have posted about that many times on Usenet and never gotten an answer
    either !
    philo, Jan 10, 2006
  4. Mike Hall \(MS-MVP\)

    V Green Guest

    Proper policy would be to
    remove it from Device Manager BEFORE physically
    removing it in any circumstance.
    V Green, Jan 10, 2006
  5. Mike Hall \(MS-MVP\)

    philo Guest

    I'll have to give that a try.

    (of course having the listing there does not seem to hurt anything)
    philo, Jan 10, 2006
  6. Mike Hall \(MS-MVP\)

    David Vair Guest

    Put this into a little batch file:

    set devmgr_show_nonpresent_devices=1
    cd\ %SystemRoot% \System32
    start devmgmt.msc

    When the device manager opens select the show hidden devices, you will now be able to see the items
    that are no longer physically present. The icons for these items will be dimmed out when you expand
    their tree.
    David Vair, Jan 10, 2006
  7. You might also get problems if you have 2 identical NICs, as a lot of the
    DRIVERS don't understand that.

    Most learned on these newsgroups
    Helsinki, FINLAND
    (translations from/to FI not always accurate
    Thomas Wendell, Jan 10, 2006
  8. I just installed a third LAN adapter (in addition to the two that are part
    of the M/B) because Windows Vista didn't recognize the on-board LAN
    selections and manufacturer drivers (Nvidia) are not available yet - that
    work! All three connections will work within Windows XP, depending upon
    which one I have connected when I bootup the system.

    Yes, I am dual booting. Actually I boot between many operating systems.



    Richard Urban
    Microsoft MVP Windows Shell/User

    Quote from George Ankner:
    If you knew as much as you think you know,
    You would realize that you don't know what you thought you knew!
    Richard Urban, Jan 10, 2006
  9. Mike Hall \(MS-MVP\)

    Ian Guest

    It's also a recognised fact that IRQ conflicts DO happen on the PCI bus,
    even though the theory says they shouldn't. This is often the cause of slow
    or erratic network transfers, intermittent sound, etc.
    Ian, Jan 10, 2006
  10. Mike Hall \(MS-MVP\)

    philo Guest

    I can see the non-present devices
    but cannot delete the non-present NIC card
    but it's not hurting anything...
    so I will leave it alone
    philo, Jan 11, 2006
  11. Mike Hall \(MS-MVP\)

    David Vair Guest

    Not sure , but you may have to remove the Packet Scheduler Miniport one first, then remove the card.
    David Vair, Jan 11, 2006
  12. Mike Hall \(MS-MVP\)

    Joel Guest

    Nobody else asked, so I will. What board? I have two nic's in my hp zd8000
    with no problems and two on my Asus p4s533. If you count my usb adapter, I
    have 3.
    Joel, Jan 11, 2006
  13. Mike Hall \(MS-MVP\)

    xfile Guest


    In this case, this is Asus P4P800 - this is for sure.

    We also have P4P800 SE, and if I remembered correctly, it has similar
    problems as well, but I did not "see" it with my own eyes.
    xfile, Jan 11, 2006
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.