This seems remarkably suited to my situation,

    CPU(s): 32
      On-line CPU(s) list: 0-31
    Vendor ID: GenuineIntel  
    Model name: Intel(R) Xeon(R) CPU E5-2680 0 @ 2.70GHz

Also with 128G. Does 8 dimm sockets imply more actual bandwidth in practice?

This poor thing is currently a YouTube watching box.