ASROCK B450D4U-V1L User Manual page 19

**There are two LEDs on each LAN port. Please refer to the table below for the LAN port
LED indications.
LAN Port (LAN1, LAN2) LED Indications
Activity / Link LED
Status Description
Off No Link
Blinking Green Data Activity
On Link
ACT/LINK LED
SPEED LED
LAN Port
Speed LED
Status
Off
Off
Yellow
X470D4U / B450D4U-V1L
Description
10Mbps connection or
no link
100Mbps connection
1Gbps connection
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