HP ProLiant SL2500 HP ROM-Based Setup Utility User Guide - Page 18
Advanced Memory Protection, For more information on Advanced Memory Protection
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Advanced Memory Protection Advanced Memory Protection provides additional memory protection beyond ECC (error checking and correcting), including: Option Description Servers supported Advanced ECC Support (default) Provides the largest memory capacity G7 servers: All Gen8 servers: All to the OS. Online Spare with Advanced ECC Support Enables the system to automatically G7 servers: All Gen8 servers: All map out a group of memory that is receiving excessive correctable memory errors. This memory is replaced by a spare group of memory. Mirrored Memory with Advanced ECC Provides maximum protection against Support uncorrectable memory errors that would otherwise result in system failure. G7 servers: Some models Gen8 servers: Not an available option Lockstep Mode with Advanced ECC Support (Intel servers) Provides maximum data protection by G7 servers: Some models Gen8 enabling multiple-bit memory errors to servers: Not an available option. For be corrected in certain instances not more information about lockstep mode, otherwise possible in Advanced ECC see "Memory Channel Mode" mode. (page 142). For more information on Advanced Memory Protection, see the HP ProLiant Server Memory website (http://h18004.www1.hp.com/products/servers/technology/memoryprotection.html). 18 RBSU menu-driven interface, version 3.xx or later (G6, G7, and Gen8 servers)