HP ROM-Based Setup Utility - Manual (Page 142)

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)