Asus Z170-WS Manual page 100

DRAM Switching Frequency [Auto]
This item affects the VRM transient response speed and the component thermal
production. Select [Manual] to configure a higher frequency for a quicker transient
response speed.
Configuration options: [Auto] [Manual]
DO NOT remove the thermal module. The thermal conditions should be monitored.
The following item appears only when you set the CPU VRM Switching Frequency to
[Manual].
Do not remove the thermal module when the manual mode is selected. The thermal
conditions should be monitored.
Boot Voltages
CPU Core/Cache Boot Voltage [Auto]
Configuration options: [Auto] [0.600] - [1.700]
DMI Boot Voltage [Auto]
Configuration options: [Auto] [0.300] - [1.900]
Core PLL Boot Voltage [Auto]
Configuration options: [Auto] [0.70000] - [2.40000]
CPU System Agent Boot Voltage [Auto]
Configuration options: [Auto] [0.7000] - [1.8000]
CPU VCCIO Boot Voltage [Auto]
Configuration options: [Auto] [0.7000] - [1.8000]
Internal CPU Power Management
The subitems in this menu allow you to set the CPU ratio and features.
Intel(R) SpeedStep(tm) [Auto]
Allows the operating system to dynamically adjust the processor voltage and cores
frequency to decrease the average power consumption and decrease average heat
production. Configuration options: [Auto] [Enabled] [Disabled]
Turbo Mode [Enabled]
Allows you to enable your processor cores to run faster than the base operating
frequency when it is below power, current and specification limit. Configuration options:
[Disabled] [Enabled]
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Fixed DRAM Switching Frequency (KHz) [300]
This item allows you to set a higher frequency for a quicker transient
response speed. Use the <+> or <-> to adjust the value. The values range
from 300 KHz to 500 KHz with an interval of 50 KHz.
Chapter 3: BIOS Setup