CMS 8GB (2X4GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Compatible with HP/Compaq Workstation Z400 Workstation for Server Only - B80 at Amazon.com
Kingston Technology 16GB 1600MHz DDR3 Reg ECC Low Voltage DIMM Memory for Dell Desktops (KTD-PE316LV/16G) at Amazon.com