I have a Mac mini Server Macmini4,1 (A1347) mid 2010 model running Sierra. The ethernet port is not working or the computer doesn't recognize it. I had to take apart the computer to replace the drives. I know the ethernet port is soldered to the board. I think I connected everything when I was putting back together the computer. I don't seem to have
AppleKextExcludeList.kext extension listed under Library.
When I go under System Report, I get this message:
This computer does not appear to have any PCI cards installed.
I have tried the following:
- PRAM reset
- SMC reset
- Ran any pending updates
- Copied AppleKextExcludeList.kext from a known working computer to this Mac mini Server and restarted computer
Nothing seems to work. At this point, I think it is a possible hardware issue. Also, I was not able to get into Diagnostics. I got an error message "Failed to initialized product driver". Regardless, I still have the ethernet port not working AND the fan is running high. The fan running high could be a few factors such as thermal sensors or motherboard is bad or cable defective.
I erased the drive and reinstalled a fresh copy of Sierra. It didn't resolve the ethernet port or the fan running high.
Since I am not able to invoke the Diagnostics, can someone offer me any advice on how I proceed to troubleshoot/resolve this issue?