Originally Posted by mpilchfamily
There is a good chance the PSU may be at fault here.
If you read the linked thread you know that one of the first things I found out about the system was that the PSU's fan had stopped. So, yes I do suspect that PSU. I replaced the fan and tried to restore the system to functionality. However, when things got to the point where nothing showed up on the monitor, no post, no beep and the PSU turned on when plugged in, not when the power button was pressed, I swapped out that PSU for another and the same conditions prevailed, so I decided whatever the shape of that PSU, it wasn't causing all the problems. Maybe I should try to post with the 2nd PSU, just in case. That is a spare PSU I have lying around.