Dell External OEMR XL R610 Technical Guide - Page 31
Memory Scrubbing, Advanced ECC Lockstep Mode, Optimizer Independent Channel Mode, Supported
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Dell 7.8 Memory Scrubbing The R610 memory interface supports memory demand and patrol scrubbing, single-bit correction and multi-bit error detection. Correction of a x4 or x8 device failure is also possible with SDDC in the Advanced ECC mode. Additionally, correction of a x4 device failure is possible in the Memory Optimized mode. 7.9 Advanced ECC (Lockstep) Mode In this configuration, the two channels closest to the processor are combined to form one 128-bit channel. This mode supports Single Device Data Correction (SDDC) for both x4- and x8-based memory modules. Memory modules must be identical in size, speed and technology in corresponding slots. 7.10 Optimizer (Independent Channel) Mode In Optimizer (Independent Channel) mode, all three channels are populated with identical memory modules. This mode permits a larger total memory capacity but does not support SDDC with x8-based memory modules. A minimal single-channel configuration of 1 GB memory modules per processor is also supported in this mode. 7.11 Supported Configurations See the System Memory section in the Installing System Components chapter in the Dell PowerEdge R610 Systems Hardware Owner's Manual on Support.dell.com. PowerEdge R610 Technical Guide 31