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TROUBLE.TXT
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1999-06-01
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56 lines
3Com (R) Corporation
3C90x EtherLink PCI NIC Family
Troubleshooting Information
If the NIC diagnostic tests fail using the 3Com Configuration and
Diagnostic program for DOS, the NIC may not be defective. Check the
following:
1. Make sure that the NIC is completely seated in its slot. Review
the installation instructions in the NIC's user guide.
2. If you are running the Group 2 test, make sure that the NIC is
securely connected to a loopback plug or to a properly cabled network.
Running Group 2 tests while connected to an active network can cause
intermittent failures. These failures can be avoided by using a
loopback plug or by connecting to an inactive network on which only
the computer being tested is operating.
3. If you are running the Group 3 test, make sure that the NIC is
securely connected to a properly cabled network and that an echo
server is set up and running on the network.
4. If you are configuring the I/O base address, interrupt request level,
or boot PROM base address, make sure that the settings you choose for
these parameters do not conflict with any other peripheral or software
program installed in the computer. For a list of system resources
commonly used by other peripherals, select Commonly Used Interrupt
and I/O Base Addresses from the Configuration and Diagnostic submenu.
5. Make sure that the configuration setting for the transceiver type is
correct.
6. If you installed a twisted-pair NIC in your PC, check the LED on
the backplate of the NIC. The LED should be checked only during or
after the diagnostic tests have been run. The LED lights when
there is a correct and active connection between the NIC and the hub.
The LED flashes if the polarity of the connection is reversed.
7. The slot in the computer may be defective. Install the NIC in
another slot and run the tests again.
8. The computer in which the NIC is installed may be defective.
Install the NIC in a known functioning computer and run the tests
again.
9. The components of the loopback plug you are using may be defective.
Try a different loopback plug.
10. Replace the failed NIC with a known working NIC with the same
configuration. Run the tests again. If the second NIC fails,
something is probably wrong with the test environment, not with
the NIC.
(%VER TROUBLE.TXT - Troubleshooting v5.1.0)