HP ProLiant SL2500 HP ROM-Based Setup Utility User Guide - Page 69
DIMM Voltage Preference, Optimized for Performance, Optimized for Power
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DIMM Voltage Preference Gen8 systems support both LV-DIMMs (1.35V) and 1.5V-only DIMMs. LV-DIMMs can switch to 1.5V capacity in turbo mode. At 1.35V, they can match the performance of 1.5V DIMMs in most situations, but in some limited configurations, must switch to 1.5V for maximum speed. Options include: • Optimized for Performance (default)-This sets the voltage for a system with all low voltage DIMMs to 1.5V only if that provides a performance advantage. Otherwise, the DIMMs are left at 1.35V. • Optimized for Power-Low voltage DIMMs run at 1.35V, even if this requires memory to run at a lower frequency. The system does not allow 1.35V operation unless all installed DIMMs in the system are low voltage DIMMs. Power Management Options menu 69