User Guide
4-14
Chapter 4: BIOS Setup
4.4 Main menu
The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup
program. The Main menu provides you an overview of the basic system information, and
allows you to set the system date, time, language, and security settings.
Security
The Security menu items allow you to change the system security settings.
• If you have forgotten your BIOS password, erase the CMOS Real Time Clock
(RTC) RAM to clear the BIOS password. See section 3.1 Motherboard layout for
information on how to erase the RTC RAM via the CLRTC header.
• The Administrator or User Password items on top of the screen show the default [Not
Installed]. After you set a password, these items show [Installed].
4.5 Ai Tweaker menu
The Ai Tweaker menu items allow you to congure overclocking-related items.
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld
values can cause the system to malfunction
The conguration options for this section vary depending on the CPU and DIMM model you
installed on the motherboard.
CPU Core Ratio
This item allows you to set the CPU core ratios.
Conguration options: [Auto] [Sync All Cores] [Per Core]
DRAM Frequency
This item allows you to set the memory operating frequency. The congurable options vary
with the BCLK (base clock) frequency setting. Select the auto mode to apply the optimized
setting.
Conguration options: [Auto] [DDR4-800MHz] - [DDR4-4266MHz]
Internal CPU Power Management
The subitems in this menu allow you to set the CPU ratio and features.
Intel(R) SpeedStep(tm)
Allows the operating system to dynamically adjust the processor voltage and cores
frequency to decrease the average power consumption and decrease average heat
production.
Conguration options: [Auto] [Enabled] [Disabled]
Turbo Mode
Allows you to enable your processor cores to run faster than the base operating
frequency when it is below power, current and specication limit. Conguration options:
[Disabled] [Enabled]