52 Using the System Setup ProgramCPU Information ScreenTable 2-4 lists the options and descriptions for the information fields thatappear on the CPU Information screen.Redundant Memory(Disabled default)Enables or disables the redundant memory feature.When set to Spare Mode, the first rank of memory oneach DIMM is reserved for memory sparing. See"Memory Sparing Support" on page 116. Redundantmemory feature is disabled if the Node Interleaving fieldis enabled.Node Interleaving If this field is enabled, memory interleaving is supportedif a symmetric memory configuration is installed. If thisfield is set to disabled (the default), the system cansupport Non-Uniform Memory architecture (NUMA)(asymmetric) memory configurations.NOTE: The Node Interleaving field must be set to Disabledwhen using the redundant memory feature.Memory OptimizerTechnology(Enabled default)Sets the behavior of the two DRAM controllers formemory optimization. When set to Enabled, the twocontrollers run in parallel 64-bit mode for improvedmemory performance (running single-bit ECC).Whenset to Disabled, the controllers are joined in 128-bitmode running multi-bit Advanced ECC.Low Power Mode(Disabled default)Enables or disables the low power mode of the memory.When set to Disabled, the memory runs at full speed.When set to Enabled, the memory runs at a reducedspeed to conserve energy.Table 2-4. CPU Information ScreenOption Description64-bit Specifies if the installed processors support 64-bitextensions.Core Speed Displays the clock speed of the processors.Bus Speed Displays the bus speed of the processors.Table 2-3. Memory Information Screen (continued)Option Description
