Key facts
- Brand
- Lenovo
- Model
- BN8139
- Category
- Other Computer Accessories
- Industry
- Computers
- Documents
- 2
- Languages
- EN · ZH
- Last added
- 2012-03-14
Start here
Legend BN8139 Network Adapter User Manual
This guide covers the complete installation process for the Legend BN8139 network adapter, including hardware mounting, driver installation for Windows 95/98 and Windows 2000/XP, and safety precautions. Detailed step‑by‑step instructions help users correctly connect the adapter, install the appropriate drivers, and verify operation.
Additional sections address common problems, explain the meaning of the three status LEDs, and offer solutions for electromagnetic interference that may affect nearby TV or radio equipment.
Lenovo BN8139 specifications
| Supported Ethernet speeds | 10Mbps (10Base‑T) and 100Mbps (100Base‑TX) |
|---|---|
| LED indicator – LINK100 | Green, indicates 100Mbps link |
| LED indicator – LINK10 | Yellow, indicates 10Mbps link |
| LED indicator – ACT | Red flashing, indicates data transmission |
All Lenovo BN8139 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What should I do if the adapter interferes with TV or radio signals?
Shut down the computer, reinstall the receiving antenna, keep the transceiver away from the computer, avoid using the same power socket for both, and add shielding to the expansion slot openings.
What do the three LED lights on the adapter indicate?
LINK100 (green) shows a 100 Mbps link, LINK10 (yellow) shows a 10 Mbps link, and ACT (red) flashes to indicate data transmission.
What should I check if the network adapter is not working?
Verify that the driver is correctly installed, the Ethernet cable is securely connected, the switch or hub matches the adapter’s speed (10 Mbps or 100 Mbps), and observe the LED status for link and activity.