I have a similar problem. I had my Mine installed a few months ago - it always worked fine, I assumed - until today. While assembling a new VGA, I noticed that one of the bolts was not locked (hence some overheating problems every now and then). While trying to get it in place, not only I managed to brake on of the plastic tips, but also cut my finger on the aluminiun fins
Now the computer just won't stay on for long. What should it be? Can it be short-circuiting (is it possible? I am pretty sure everything else ios fine), or is it just due to overheating? If the cooler is misplaced (and the thermal paste is not reapplied decently), is it enough to overheat so fast - in a couple of minutes... 100º C!!!
What can I do to solve the push pin problems? One of them has a broken tip and another is not locking properly...
(sorry to ask this again, but I cannot undestand german)