https://community.hpe.com/t5/proliant-servers-ml-dl-sl/dl580-g7-memory-performance/m-p/4786395#M111685 Hi All<BR /><BR />I hade read as much info available in Quickspecs and userguides about the Memory guidelines and performance configurations.<BR /><BR />Can someone tell me what the impact of installing 256GB (32x 8GB) in 4 memory Cartridges vs spreading this configuration out across 8 memory cartridges in Hemisphere Mode.<BR /><BR />If the Optimal configuration using a CPU with QPI 6.4GT will run the RAM 1066Mhz. What is the impact on Memory speed if this is run on 4 Memory cartidges not in Hemisphere mode ?<BR /><BR />The link below outlines the Memory guidelines a little clearer than Quickspecs.<BR /><BR /><A href="http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&amp;cc=us&amp;objectID=c02283239&amp;jumpid=reg_R1002_USEN" target="_blank">http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&amp;cc=us&amp;objectID=c02283239&amp;jumpid=reg_R1002_USEN</A> <BR /><BR />Many Thanks<BR />Sam Wed, 11 May 2011 03:24:22 GMT Sam_Lees 2011-05-11T03:24:22Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/dl580-g7-memory-performance/m-p/4786395#M111685 Hi All<BR /><BR />I hade read as much info available in Quickspecs and userguides about the Memory guidelines and performance configurations.<BR /><BR />Can someone tell me what the impact of installing 256GB (32x 8GB) in 4 memory Cartridges vs spreading this configuration out across 8 memory cartridges in Hemisphere Mode.<BR /><BR />If the Optimal configuration using a CPU with QPI 6.4GT will run the RAM 1066Mhz. What is the impact on Memory speed if this is run on 4 Memory cartidges not in Hemisphere mode ?<BR /><BR />The link below outlines the Memory guidelines a little clearer than Quickspecs.<BR /><BR /><A href="http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&amp;cc=us&amp;objectID=c02283239&amp;jumpid=reg_R1002_USEN" target="_blank">http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&amp;cc=us&amp;objectID=c02283239&amp;jumpid=reg_R1002_USEN</A> <BR /><BR />Many Thanks<BR />Sam Wed, 11 May 2011 03:24:22 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/dl580-g7-memory-performance/m-p/4786395#M111685 Sam_Lees 2011-05-11T03:24:22Z https://community.hpe.com/t5/proliant-servers-ml-dl-sl/dl580-g7-memory-performance/m-p/4786396#M111686 I answered my own question. I have found some performance testing done by Fujitsu on Nahalem EX Memory configuraitons. Please refer to the link below.<BR /><BR /><A href="https://globalsp.ts.fujitsu.com/dmsp/docs/wp-nehalem-ex-memory-performance-ww-en.pdf" target="_blank">https://globalsp.ts.fujitsu.com/dmsp/docs/wp-nehalem-ex-memory-performance-ww-en.pdf</A> <BR /><BR />Regards<BR />Sam Mon, 16 May 2011 01:10:23 GMT https://community.hpe.com/t5/proliant-servers-ml-dl-sl/dl580-g7-memory-performance/m-p/4786396#M111686 Sam_Lees 2011-05-16T01:10:23Z