Question Ethernet and some USB ports not working after CPU upgrade.

[bzj2235]

Just upgraded from an R5 5600 to R7 5700. Now many of my USB devices don't work and Ethernet doesn't work at all (I have no wifi card or dongle). After going through several flash drives, external ssds, etc. I was able to get one working and used my laptop to put my motherboards LAN drivers on it. When installing on my PC, however, I get the loading bar as if it's doing something but nothing happens. The window with the loading bar just disappears and the Ethernet doesn't work, even after restarting. My motherboard is a Gigabyte B550M D3SH, all help appreciated.

 

[T_T]

You may have a defective CPU. Though properly installed, the CPU may not actually be processing the commands/instructions of your hardware. Still, there are a few steps you can try...

Right click Windows then run PowerShell (Admin).

In the Shell, type or paste: get-netadapter | fl, then press Enter. Next to "InterfaceOperationalStatus" and "AdminStatus" should be "Up". If not, type or paste: enable-netadapter Ethernet, then press Enter.

For your USB ports, try: Get-pnpdevice | select status,friendlyname,instanceid, then press Enter. The Shell will display every PNP device installed. If there are any with and "error" status, highlight the InstanceID, then right click the mouse to copy it. use the following command: enable-pnpdevice "instanceID goes here (right click again to paste)", then press Enter

Example: Enable-PnpDevice -InstanceID "USB\ROOT_HUB30\4&CFF11C0&0&0" -Force
The above command would enable the USB 3.0 Root Hub on my PC.

Lastly, reinstall the R5 if the problems go away, then you know for certain the CPU is the culprit