I bought the Z620 used, about a year ago, for CAD work and folding (F@H). After folding for approximately 6 months on the CPUs, the system locked up, black screen, fans screaming (i assumed a thermal overload protection mode or similar).
It took me a few days to figure out the issue, but the second CPU riser seems to be the culprit ... specifically the black power input plug.
The system has been running fine for the last 6-8 motnhs without he 2nd CPU riser card installed.
The input plug, from both sides (cable harness side and CPU riser side) are both melted. I would like to get this problem resolved but i dont want to fry another input plug / CPU riser board.
I am unsure if the only problem with the riser card is the input power plug or if something in the card has caused the plug to melt.
Without having another sytem to plug the card into, how can I start tracking down the root cause of this problem?