Asus P8Z77-V PREMIUM P8Z77-V PREMIUM User's Manual - Page 105

PCH Voltage [Auto] Allows you to set the Platform Controller Hub voltage. The values range from 0.80V to 1.70V with a 0.01V interval. • The values of the CPU PLL Voltage, CPU Manual Voltage, CPU Offset Voltage, iGPU Manual Voltage, iGPU Offset Voltage, DRAM Voltage, VCCSA Voltage, VCCIO Voltage, and PCH Voltage items are labeled in different color, indicating the risk levels of high voltage settings. • The system may need better cooling system to work stably under high voltage settings. • When you enable the OV_CPU/DRAM jumper, the CPU Manual Voltage and DRAM Voltage increases to a maximum 2.3V range. DRAM DATA REF Voltage on CHA/B [Auto] Allows you to set the DRAM DATA Reference Voltage on Channel A/B. The values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability. DRAM CTRL REF Voltage on CHA/B [Auto] Allows you to set the DRAM Control Reference Voltage on Channel A/B. The values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability. CPU Spread Spectrum [Auto] [Auto] Automatic configuration. [Disabled] Enhances the BCLK overclocking ability. [Enabled] Sets to [Enabled] for EMI control. BCLK Recovery Allows you to recover the BCLK parameters. Configuration options: [Auto] [Enabled] [Disabled] Chapter 3 ASUS P8Z77-V PREMIUM 3-19