I have a 3 year old 8930

The first symptom I had, was that it would be turned on in the morning when I woke up. I do not have this function turned on.

It then progressed to shutting down randomly when I was using it.

I have replaced the power supply, the mother board and the hard drive with a new version of windows 10.

I have ran the F12 diagnoIstic and when it runs it passes.  It does just shut down in the middle of the diagnostics sometimes however. 

The shutdown during diagnostics just occurred, I pulled the wireless card off the mobo this time, and the problem stopped.

I am not an expert by any means but I cannot find anything  in the windows logs showing an issue with the wireless.

Could the daughter card be the cause of the shutdown?