corrupted motherboard

hi
i have a sun server V890 and i added two cpu/memory modules to it but it caused the motherboard to become corrupted
could you please help me find what causes this problem and how to avoid it because i changed the corrupted motherboard and i want to do the expansion and I'm scared that adding the modules can also damage the new motherboard
thnx.......

I will move this thread to the Solaris forum where it has a better chance of attracting attention from any Sun hardware types who drop by.

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