Hi, What version is the system BIOS at? You may want to update that. You may also want to try the DIMMs two at a time and see if there is a bad slot.   
Hi, my beloved R710 ran like a charm for the last 5 1/2 years, but recently it crashed at least once a day, mainly because auf "Multi-bit memory errors detected on a memory device at location DIMM_B1" which looks like a very precise error description. Initially I ordered the system with 12x 2GB modules, and replaced them about 3 years ago with 6x 16GB Kingston modules. No problem, ran really smooth, until a couple days ago. I tried with just two modules, but never got it stable. If I put the old 12x 2GB in, the the system seems to be solid again. I even installed a complete NEW set of 6x 16GB Kingston modules, but the problem persists. There was no change on the software side (VMware ESX 5.5 running unpatched for a while). Because my 5 year warranty is over and I have no support anymore, does anyone has some hints for what to check? I don't wanna put the system in retirement, because it's just fantastic and fits my need, if it works though :) Thanks in advance. --Michael
R710 - crashing due to memory problems?