As it turned out the processor E5-2620 does not support rdrand. Your redirection was in vain.
RdRand is support by the Ivy Bridge or 3rd generation processors.
The E5-2620 is a Sandy Bridge-EP, a 2nd generation processor therefore it does not support RdRand.
However, you may want to contact the software manufacture to find out the minimum requirements needed in order to work.