4PCS OF 4GB 1333MHz ECC Module NON REGISTER Genuine CMS brand, CMS is one of the most trusted names in the Computer Memory industry and this product carries a Lifetime Warranty from CMS.
Compatible with: HP Workstation Z200 Manufacturing numbers FL970UA; FL971UA; FL972UA; FL974UT; FL975UT; FL976UT; FL977UT; FL978UT; FL979UT; FL980UT; FL981UT; KK610EA; KK611EA; KK612EA; KK620ET; KK621ET; KK622ET; KK623ET; KK624ET; KK625ET; KK627EA; KK628EA; KK634ES; KK639EA; KK640EA; KK653ET; KK654ET; KK655ET; KK663ET; KK664ET; KK666ET; KK667ET; KK668ET; KK672ES; KK682ET; KK698EA; SH820UP; VA206AV; VA207AV; WF988AV; WQ522LA; WQ523LA; WQ524LA; WR601PA; WR602PA; WR603PA; WR604PA; WR605PA; WR606PA; WR607PA; WR608PA; WR609PA; WR610PA; WS476PA; WS477PA;
WS478PA Maximum
Memory: 16 GB ECC-UDIMM Sockets 4 MODULES MAY BE INSTALLED ONE AT A TIME; however, for optimum performance install modules across all three memory channels for triple channel memory interleaving. If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). A 64-bit operating system is required to utilize more than 4GB of memory. DDR3-1333 modules automatically clock down to 1066MHz and 800MHz depending on which Intel Xeon model is used and the number of modules installed.