MSI Z87 User Guide - Page 80
Ddr_vref_ca/ Ddr_vref_dq_a/ Ddr_vref_dq_b/ Pch 1.05 Voltage/ Pch
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▶ CPU Core Voltage/ CPU Ring Voltage/ CPU GT Voltage [Auto] Sets these voltages. If set to "Auto", BIOS will set these voltages automatically or you can set it manually. ▶ CPU Core Voltage Offset Mode/ CPU Ring Voltage Offset Mode/ CPU GT Voltage Offset Mode/ CPU SA Voltage Offset Mode/ CPU IO Analog Voltage Offset Mode/ CPU IO Digital Voltage Offset Mode [Auto] Selects the voltage offset modes. [Auto] This setting will be configured automatically by BIOS. [+] Allows you to set the positive offset voltage. [-] Allows you to set the negative offset voltage. ▶ CPU Core Voltage Offset/ CPU Ring Voltage Offset/ CPU GT Voltage Offset/ CPU SA Voltage Offset/ CPU IO Analog Voltage Offset/ CPU IO Digital Voltage Offset [Auto] Set the offset values for these voltages. ▶ Current CPU Core Voltage/ Current CPU Ring Voltage/ Current CPU GT Voltage/ Current CPU SA Voltage/ Current CPU IO Digital Voltage Show the current voltages. Read-only. ▶ Internal VR OVP OCP Protection [Auto] Enables or disables the over-voltage protection and over-current protection for CPU internal VR (Voltage Regulator). [Auto] This setting will be configured automatically by BIOS. [Enabled] Sets the voltage limit on the CPU internal VR for over-voltage protection and over-current protection. [Disabled] Disables this function for overclocking. ▶ Internal VR Efficiency Management [Auto] Enables or disables the CPU internal VR efficiency management. [Auto] This setting will be configured automatically by BIOS. [Enabled] Enables the VR effciency management for power-saving control. [Disabled] Disables this function. ▶ DRAM Voltage [Auto] Sets the memory voltage. If set to "Auto", BIOS will set memory voltage automatically or you can set it manually. ▶ Current DRAM Voltage Shows current memory voltage. Read only. ▶ DDR_VREF_CA/ DDR_VREF_DQ_A/ DDR_VREF_DQ_B/ PCH 1.05 Voltage/ PCH 1.5 Voltage Set these voltages. If set to "Auto", BIOS will set these voltages automatically or you can set it manually. ▶ Current PCH 1.05 Voltage Shows current PCH 1.05 voltage. Read only. Chapter 3 BOIS Setup 3-22