I am looking also new server for our QV installation. Currently we are using IBM HX5 Blade with X5 memory expansion equipped with 226GB RAM. For new server my aim initial 512GB RAM with possibility to extend to 1TB min. Now some vendors are proposing LRDIMM's (Load-Reduced Dimm Technical Brief - LRDIMMs | Kingston) for memory. Does anyone has any experiences with LRDIMM's in QV environment? Is there any performance risks?