Bug, easily reproducable, I updated to latest released BIOS version 0052 7/8/2013, cpu is Xeon E3 1265Lv2
-Install two 8GB DDR3 1.5V so-dimms which otherwise work fine
-Install Intel Ethernet I350-T4
Dimm channel B will not be detected at all
All memory is detected and works fine if you either:
-Remove NIC
or
-Replace with Pro 1000 PT Quad (82571GB)
On a side note, not that anyone seemed to care since I posted it last year, but this board will not boot at all with an intel Gigabit VT Quad (82575/6) as the bios hangs completely.
So this now makes two intel NICs for me that are not compatible with an intel board but work on everything else I have...stay classy!