For the fixlet, "BES Server Does Not Meet Recommended Requirements", the sizing relevance is broken into sections according to the numbers of clients and licenses. One such block is:
(maximum seat count of client license >= 1000 and maximum seat count of client license < 5000 and (speed of main processor < 2000 * mhz or (if (it > 128) then ( ((it / 32) * 32) + (if (it mod 32 > 16) then 32 else 0) ) else it) of (size of ram / (1024*1024)) < 512))
It looks like this license range is "undersized" if either the CPU is less than 2 GHz, *or* .... some murky evaluation of the RAM size. Can someone break down this evaluation? Is there something basic hidden in there, like "MB per client session"?