Your configuration looks fine for populating 12 DIMMs. You can get details of memory population for R620 from below link   [URL]
Hi All, I just purchased 32GB x 12 totalling   384GB of type  LRDIMM. How should I set them in the R620 server? Each module is 32GB, have 12 modules. Yes,. I have TWO CPUs. I understand I should set the memory in same slots. so is this the correct configuration? A1, A2, A3, A4, A5, A6 B1, B2, B3, B4, B5, B6 Please advise, Thanks, -Sup.
RAM Layout Recommendations for R620 - 384GB LRDIMM of 32GBx12