CMS 24GB (3X8GB) DDR3 10600 1333MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 C2 Series Only Ecc Reg for Server Only - B105 at Amazon.com
A-Tech 24GB (6 x 4GB) DDR3 1333 MHz PC3-10600R ECC RDIMM 1Rx4 1.5V ECC Registered DIMM 240-Pin Server & Workstation RAM Memory Upgrade Kit at Amazon.com