Machine rebooted due to bugcheck

On 03/06/2011 one of my machine got rebooted due to bugcheck ..
can you please help me to know that what are the possible causes for this and what may be its remedy. I am attaching two files please check them.

This is a IBM Machine. & as very critical processes runs on this system so its rebooting like this can create very critical situation.
 

Attachments

  • Restart  EOD System.JPG
    Restart EOD System.JPG
    37.6 KB · Views: 1
  • Mini060311-01.dmp
    88 KB · Views: 1
The bug check code for this minidump is 80 indicating a hard ware failure and the drivers pointed at would suggest a Realtek ethernet adapter. Look in the device manager as you may find a yellow warning next to the device under Network Adapters.
 
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