CMS 6GB (3x2GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 DDR3 ECC UNBUFF for Server Only - B75 at Amazon.com
RAM [rigacci.org]
16GB RDIMM 2400Mhz Dual Rank - Data Width DDR4 PC-2400T Registered Memory // STI Kansas City
384GB (6x64GB) DDR4 2666MHz ECC | Server RAM Modules