UPDATE:
I'm currently testing one of the CPUs I got on these motherboards and I'm memtesting 18 sticks of DDR3 1333 ECC ram. So far, so good! I'm rockin a Kill-A-Watt measurement of 57 watts with three fans (2 x 120mm and 1 x 80mm) and 6 sticks of ram while crunching MemTest86+. Also, this motherboard has an unbelievable amount of BIOS settings to tinker with. I've never seen a BIOS with the ability to tell the motherboard your altitude above sea level (located in the performance and acoustics section).
Also, there's no chance this bent DB9 problem is a coincidence. Look how a brand spankin new Supermicro X10SRL-F LGA2011 DDR4 motherboard arrived at work today (from NewEgg):
Same problem with a completely different motherboard. Just like the box for the Intel motherboards, that corner of the box caved in a bit during shipping and smashed the connector. Insane. My co-worker was able to bend it back without any real damage and the board appears to work fine.