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TROUBLE.TXT
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1996-10-25
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55 lines
3Com (R) Corporation
EtherDisk (R) Diskette for the
3C90X Fast EtherLink XL/EtherLink XL Bus Master NIC Family
Troubleshooting
If the NIC diagnostic tests fail, 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 appropriate NIC 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 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, 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 will be on when
there is a correct connection between the NIC and the hub. The
LED will flash if the polarity of the connection is swapped.
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 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. If the second NIC fails, something is probably
wrong with the test environment, not with the NIC.
(%VER TROUBLE.TXT - Troubleshooting v1.0c)