Asus Z77-A - Manual (Page 65)

2-19 ASUS Z77-A
VCCSA Voltage [Auto]
Allows you to set the VCCSA voltage. The values range from 0.735V to 1.685V with a 0.005V
interval. Configuration options: [Auto] [+0.1V]
PCH Voltage [Auto]
Allows you to set the Platform Controller Hub volage. The values range from 0.735V to
1.685V with a 0.005V interval.
CPU PLL Voltage [Auto]
Allows you to set the CPU and PCH PLL voltage. The values range from 1.80V to 1.90V with
a 0.1V interval. Configuration options: [Auto] [+0.1V]
CPU Spread Spectrum [Auto]
[Auto] Automatic configuration.
[Disabled] Enhances the BCLK overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.