Intel S2600GZ S2600GZ/GL - Page 150

Intel® Server Board S2600GZ/GL TPS BIOS Setup Utility 3. Memory Lockstep Possible Option Values: Yes No Help Text: Comments: Information only. Displays whether the current DIMM configuration is capable of Memory Lockstep. For Memory Lockstep to be possible, DIMM configurations on all paired channels must be identical between the channel pair. Back to [Memory RAS and Performance Configuration Screen] - [Memory Configuration Screen] - [Advanced Screen] 4. Select Memory RAS Configuration Option Values: Maximum Performance Mirroring Rank Sparing Lockstep Help Text: Allows the user to select the memory RAS Configuration to be applied for the next boot. Comments: Available modes depend on the current memory population. Modes which are not listed as "possible" should not be available as choices. If the only valid choice is "Maximum Performance", then this option should be grayed out and unavailable. Maximum Performance - (default) no RAS, but best memory utilization since full amount of memory is available, operating in Independent Channel Mode. Mirroring - most reliability by using half of memory as a mirror image, can survive an Uncorrectable ECC Error. Rank Sparing - offers reliability by reserving spare ranks to replace failing ranks which are generating excessive Correctable ECC Errors. Lockstep - allows SDDC capability with x8 DIMMs installed. No memory size impact, but does have a performance and power penalty. Note: since only RAS Modes which are listed as "possible" are available for selection, it is not possible to select a RAS Mode without first installing an appropriate DIMM configuration. Back to [Memory RAS and Performance Configuration Screen] - [Memory Configuration Screen] - [Advanced Screen] 5. NUMA Optimized Option Values: Enabled Disabled Help Text: If enabled, BIOS includes ACPI tables that are required for NUMA-aware Operating Systems. Revision 1.1 137 Intel order number G24881-004