AMD Motherboards - Asrock TRX40 Taichi - Intel LAN stopped working

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Asrock TRX40 Taichi - Intel LAN stopped working

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=13849
Printed Date: 18 Jul 2025 at 12:22pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Asrock TRX40 Taichi - Intel LAN stopped working

Posted By: gdiazlo
Subject: Asrock TRX40 Taichi - Intel LAN stopped working
Date Posted: 14 Mar 2020 at 5:12pm

Hello

The intel I211 has stopped working suddently. When connected to the swtich, the lights indicate its connected in 100mb/s mode (orange light), but neither Windows nor Linux dected the device.

It was working properly after the Windows Update to 1909. I have update the BIOS to latest version, but still no response from the Intel card. It does not appear either in device manager or in lspci.

any tips or should I return the motherboard?

thanks

Replies:

Posted By: gdiazlo
Date Posted: 15 Mar 2020 at 1:35am

Solved. It was an external temperature sensor, which in contact with the VRM heatsink produced some current derivation which disabled the intel NIC.

Beware what its in contact with the heatsink!