Asus Z87-Expert Computer Hardware User Manual


 
3-24
Chapter 3: BIOS setup
Chapter 3
DRAM CTRL REF Voltage [Auto]
This item is the DRAM reference voltage for the control lines from the memory bus. You can
use the <+> or <-> keys to adjust the value. The values range from 0.3950x to 0.6300x with a
0.0050x interval.
DRAM DATA REF Voltage on CHA/CHB [Auto]
This item is the DRAM reference voltage for the data lines on Channels A and B. You can
use the <+> or <-> keys to adjust the value. The values range from 0.395x to 0.630x with a
0.005x interval.
Clock Crossing VBoot [Auto]
Allows you to increase the value of the clock crossing voltage boot when the rising edge of
the BCLK DN is equal to the falling edge of the BCLK DP. You can use the <+> or <-> keys to
adjust the value. The values range from 0.1V to 1.9V with a 0.00625V interval.
Clock Crossing Reset Voltage [Auto]
Allows you to increase the value of the clock crossing reset voltage when the rising edge of
the BCLK DN is equal to the falling edge of the BCLK DP. You can use the <+> or <-> keys to
adjust the value. The values range from 0.1V to 1.9V with a 0.00625V interval.
Clock Crossing Voltage [Auto]
Allows you to increase the value of the clock crossing voltage when the rising edge of the
BCLK DN is equal to the falling edge of the BCLK DP. You can use the <+> or <-> keys to
adjust the value. The values range from 0.1V to 1.9V with a 0.00625V interval.
PLL Termination Voltage [Auto]
Allows you to terminate the PLL Voltage. You can use the <+> or <-> keys to adjust the value.
The values range from 0.00000V to 2.50000V with a 0.01250V interval.
CPU Spread Spectrum [Auto]
[Auto] Automatic conguration.
[Disabled] Enhances the BCLK overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.