Appendix B: Enable 2.5Gbe Lan Functionality - Lanner NCA-1250 User Manual

NCA-1250 User Manual

APPENDIX B: ENABLE 2.5GBE LAN FUNCTIONALITY

The NCA-1250 features the Intel® i226 Ethernet Controller. To activate the Intel® i226 2.5GbE LAN
capabilities, ensure your Linux Kernel is updated to version 5.16.18 or later.
The OS Support matrix can be found here.
If a customer requires assistance with a Kernel that is not mentioned in the table above, kindly contact our
technical support team.
The NCA-1250A LAN1 (from GPY211 via SOC TSN) does not support auto-switching between 1G and 2.5G.
Considering that most equipment is focused on 1G, the default setting for device port1 is 1G.
Users can manually change the LAN1 setting to 2.5G by following these steps:
Step 1. Press the <Tab> or <Del> key to enter the BIOS Setup utility.
Step 2. Select the Chipset page.
Step 3. Choose PCH-IO Configuration.
Step 4. Select TSN GBE Configuration.
Step 5. Choose RefC1k 38.4Mhz 1Gbps.
Step 6. Press F4: Save & Exit.
Notes: After adjusting the BIOS to 2.5G, if LAN1 is connected to 1G, the device will not automatically slow
down to 2.5G. It's important to understand that 2.5G means only 2.5G; 1G or below must be set to 1G. The
inability to auto-convert is due to the characteristics of the Intel® IC.
BIOS page  Chipset  PCH-IO Configuration  TSN GBE Configuration
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