Hi, I took apart my switch and before I put it back together, I ran into this problem. I checked the M92 COMPLETELY for shorts, but everything looked good. Since it worked before taking it apart, I was 99.999% sure it wasn't the port. Then I found out that the FAN was not connected completely. I connected it better and it works now, so keep in mind that it might also be a fan issue. Exact same error code while booting.