Epg_Dell, The process outlined in the post you mentioned was to identify the Dimm with the issue, since you know the issue involves Dimm B1, the process won't be nessacary. What I would recommend is to schedule a maintenance time to down the server, then swap the dimm in B1 with another MATCHING dimm, from within the server. Then when you power up you can see if the error remains at B1, identifying an issue with the slot, or if the error follows the dimm, which identifies the dimm as the issue. That should let us know where the issue is. If the error clears completely, it may have just been that the dimm needed to be reseated. Let me know what the results are from swapping the dimms location. 
Hello everyone,  I got this message in my server Dell Power Edge R710: Persistent correctable memory error rate has increased for a memory device at location DIMM_B1  How can I solve it? I have a esxi 5.1 OS installed on my server I found this [URL] but solution is only available fow Windows.  Thank you and best regards, 
Persistent correctable memory error rate has increased for a memory device at 
location DIMM_B1