I was too happy too soon;(

After some minutes posting the above MorphOS freezes by just clicking around a bit in the screenbar;(

I rebooted but it stays at the grey screen, so I booted into firmware and there is again only one cpu shown.

Then I switched the g5 off and pulled out the bottom cpu module.

Then I wanted to try if it boots with only one cpu but nothing happened if I press the power button!?

Then I put the bottom cpu module back in, installed the heatsink, the fan and closed the case. And tried again, but the same result.
No power!

In think I need to find a new G5...