Chapter 3, Dram data ref voltage on cha/b [auto, Dram ctrl ref voltage on cha/b [auto – Asus P8Z77-V PRO/THUNDERBOLT User Manual
Page 95: Cpu spread spectrum [auto, Bclk recovery [auto

ASUS P8Z77-V PRO/ THUNDERBOLT
3-19
Chapter 3
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CPU Manual
Voltage
0.8V–1.04V
1.045V–1.09V 1.095V–1.14V 1.145V–1.99V
CPU Offset
Voltage
0.005V–0.05V 0.055V–0.1V
0.105V–0.15V 0.155V–
0.635V
iGPU Manual
Votlage
0.8V-1.04V
1.045V-1.09V
1.095V-1.14V
1.145V-1.99
iGPU Offset
Voltage
0.005V–0.05V 0.55V–0.1V
0.105V–
0.155V
0.16V–0.635V
DRAM Voltage
1.2V–1.575V
1.58V–1.65V
1.655V–
1.725V
1.73V–1.99V
VCCSA Voltage
0.80000V–
0.96875V
0.97500V–
1.01250V
1.01875V–
1.06250V
1.06875V–
1.70000V
VCCIO Voltage
0.80000V–
1.10000V
1.10625V–
1.15000V
1.15625V–
1.20625V
1.21250V–
1.70000V
CPU PLL Voltage 1.20000V–
1.88750V
1.89375V–
1.97500V
1.98125V–
2.06875V
2.07500V–
2.20000V
PCH Voltage
0.80000V–
1.10000V
1.11000V–
1.15000V
1.16000V–
1.20000V
1.21000V–
1.70000V
When you switch the OV_CPU/DRAM jumper to enable, 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 [Auto]
Configuration options: [Auto] [Disabled] [Enabled]