Hi guys,
I have a big problem and maybe someone here can help me.
First of all a video of my problem:
https://youtu.be/zRQAIzdwbmE
- Both units are completely identical, an Esprimo Q920 with i3-4710T.
- I bought both used and they are so close from the MAC address (only last number is different) and serial number, that they were probably bought and used together.
- Therefore BIOS build and settings are completely the same.
Now I have the problem, with the one unit (left in the video) the ETH adapter does not go in 1000baseT. You can see it nicely when booting, how both behave differently.
- No hard disk installed, excludes driver problems on OS level
- BIOS reset of both
- External influences (cable, router) I can exclude (swapping also for the other device to 1000baseT)
Can someone estimate what is going on? Hardware defect maybe? 100baseT works normal under Debian 10, if I change it with ethtools to 1000 the network port stays mute and doesn't blink anymore.