I have been working a lot lately with PowerEdge 2650 and PowerEdge 1750 servers with 3.06GHZ processors in them with the 1MB Level 3 Cache.  When running Dell diagnostics and testing all devices in the server the testing operates fine until you reach the Level 3 Cache tests and the diagnostic utility stops and cuts to a screen stating the following:

 

Displaying (the end) of test result log: ddgui.txt

Strike a key when ready...

 

Upon striking a key it displays the results of the tests prior to the L3 Cache Pattern test and stops.

 

I have had this happen to me on serveral occasions with 2650's and 1750's. I have had one 6650 server pass such test but that is all. The servers generally work fine without incident but I was curious of a way to fix said problem.