tiredthe system behaves exactly as it did with the origional power supply unit. It powers up for half a second and shuts down.
The remaining two most likely possibilities are:
1. bad motherboard
2. bad CPU.
Of course, it could be both of the above. Replacing the motherboard is a bit cheaper, so I am trying that first. However, I had to order the board and must now wait for delivery. Blah.
