Just found this, helps to ensure that your RAM doesn’t end up running slower than you expected: Dell PowerEdge Processor and Memory selector. Best of all it does include the latest Intel E5-2600v2 series CPUs, though it’s not using the 32GB LRDIMMs in its recommendations.
Link was found on this page that gives info about PowerEdge memory configuration.
Whilst we’re at it, HP have a similar utility for their ProLiant servers: DDR3 Memory Configuration Tool
Finally, Intel also have one (though surprisingly it doesn’t include the EE5-2600v2 series CPUs): Memory Configuration Tool
As the memory controller is within the CPU now, in theory these should all give the same results for a given CPU model…