1. Installing Internal Optional DevicesExpress5800/R120g-2E User's Guide66Chapter 2 Preparations1.11.7 Cluster On Die and Early Snoop featuresTo set the Cluster On Die option to Enabled on Advanced -> Memory Configuration submenu in system BIOSsetup utility (SETUP), note the number of DIMMs to be installed.• For 1-CPU configurationInstall DIMM on at least all of CPU1_DIMM1 to DIMM3 slots.• For 2-CPU configurationInstall DIMM on at least all of CPU1_DIMM1 to DIMM3 and CPU2_DIMM1 to DIMM3 slots.For effective use of the Cluster On Die feature, the recommended number of DIMMs to be installed is as follows:• For 1-CPU configurationInstall DIMM on CPU1_DIMM1 to DIMM4 slots.Otherwise, install DIMM on CPU1_DIMM1 to DIMM8 slots.• For 2-CPU configurationInstall DIMM to CPU1_DIMM1 on DIMM4 and CPU2_DIMM1 to DIMM4 slots.Otherwise, install DIMM on CPU1_DIMM1 to DIMM8 and CPU2_DIMM1 to DIMM8 slots.• For 1-CPU configuration (Memory RAS Mode: Independent)No. of installingDIMMsCluster On Die feature Target DIMM slot1 Not available CPU1_DIMM12 Not available CPU1_DIMM1 to CPU1_DIMM23 Available CPU1_DIMM1 to CPU1_DIMM34 Available (recommended) CPU1_DIMM1 to CPU1_DIMM45 Available CPU1_DIMM1 to CPU1_DIMM56 Available CPU1_DIMM1 to CPU1_DIMM67 Available CPU1_DIMM1 to CPU1_DIMM78 Available (recommended) CPU1_DIMM1 to CPU1_DIMM8• For 1-CPU configuration (Memory RAS Mode: Independent/ Mirroring/ Lockstep)No. of installingDIMMsCluster On Die feature Target DIMM slot2 Not available CPU1_DIMM1 to CPU1_DIMM24 Available (recommended) CPU1_DIMM1 to CPU1_DIMM46 Available CPU1_DIMM1 to CPU1_DIMM68 Available (recommended) CPU1_DIMM1 to CPU1_DIMM8• For 1-CPU configuration (Memory RAS Mode: Sparing)No. of installingDIMMsCluster On Die feature Target DIMM slot2 Not available CPU1_DIMM1 & CPU1_DIMM54 Not available CPU1_DIMM1 to CPU1_DIMM2CPU1_DIMM5 to CPU1_DIMM66 Available CPU1_DIMM1 to CPU1_DIMM3CPU1_DIMM5 to CPU1_DIMM78 Available (recommended) CPU1_DIMM1 to CPU1_DIMM8
