3Com (R) Corporation
EtherCD (R) for the
3Com 10/100 PCI NIC w/3XP (3C990B)
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 and troubleshooting instructions in the NIC
user guide.
2. Make sure that the configuration setting for the media type is
correct.
3. The slot in the computer may be defective. Install the NIC in
another slot and run the tests again.
4. The computer in which the NIC is installed may be defective.
Install the NIC in a known functioning computer and run the tests
again.
5. 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 v1.0.3)
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.