HP ProLiant SL2500 HP ROM-Based Setup Utility User Guide - Page 142
Memory Channel Mode, Lockstep Mode used for Intel servers and Memory Channel Mode used for AMD
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Memory Channel Mode NOTE: This option is available on select servers. Memory Channel Mode sets the memory to work in Lockstep or Non-Lockstep mode. Options include: • Independent Channel Mode (Non-Lockstep) (default)-Uses the standard error correction mechanism of Advanced ECC. • Combined Channel Mode (Lockstep)-Provides maximum data protection by allowing multiple-bit memory errors to be corrected in certain instances not possible in Advanced ECC mode. NOTE: Lockstep Mode (used for Intel servers) and Memory Channel Mode (used for AMD servers) provide the same functionality, allowing the memory controller to correct up to 8 bad bits that are byte aligned. Activating Combined Channel Mode has some memory population rules. For more information, see the user guide or QuickSpecs for the server. 142 RBSU menu-driven interface, version 3.xx or later (G6, G7, and Gen8 servers)