UEFI Features

GIGABYTE bundled the latest version of their UEFI (Unified Extensible Firmware Interface) implementation with the AX370-Gaming 5 motherboard. The UEFI offers full keyboard and mouse support while using the BIOS pages. By default, the user sees the Easy mode interface when entering the UEFI. The Classic mode screens accessible via the Classic button at the upper right corner of the screen or by hitting the F2 function key. Classic mode screens can be set for the default user interface via the UEFI BIOS tab as well.

GIGABYTE's UEFI is both responsive and easy to use with almost no lag or questionable click-space evident anywhere. The UEFI is designed in an intuitive manner so that both novice and advance users can quickly find what they are looking for. The Easy Mode screen lays out everything in a highly readable format, while the Classic mode tabbed layout displays as you would expect from a traditional BIOS. GIGABYTE also gives you the ability to taken screen captures from within the BIOS by pressing the F12 key with those screen-caps saved in a 1024×768 bitmap format to an attached USB device.

UEFI Notable Features

GIGABYTE continues to revise and enhance their UEFI interface, sharing features from their Intel Z270 board line as well as exposing new features specific to the AMD Ryzen processor and X370 board lines. The UEFI splits its features across two modes – Easy mode and Classic mode. Easy mode displays various system information and statistics in a tile interface while the Classic mode interface is more reminiscent of the traditional tabbed layout. GIGABYTE enhanced their UEFI with a graphical fan tuning interface, a full featured LED configuration interface (RGB Fusion), a graphical BIOS flash interface, and several functional enhancements specific to the AMD Ryzen processor line.

Easy Mode interface

The Easy Mode interface organizes system data and settings into tiles across the page in an easy-to-read manner for those users who do not want to be bothered with the labyrinth of the Classic mode tabbed interface. Most commonly used settings, including boot sequence, EZ OC, and smart fan, are readily accessible from within the Easy Mode page.

Classic mode interface

The Classic mode interface offers advanced users access to the more traditional tabbed interface with its logically grouped system settings and configuration features. GIGABYTE enhanced this interface with popout side and bottom menus. The right side popout menu displays real-time system statistics, including CPU, memory, and voltage settings. The bottom pop out menu displays a quick menu interface for accessing Easy Mode, the UEFI language settings, Q-Flash, and Smart Fan functions.

Q-Flash settings page

The Q-Flash settings page gives the user a GUI for updating the board's BIOS as well as saving the current BIOS to an attached USB device. The Q-Flash configuration page is accessed by clicking on the Q-Flash button in the pop out menu within the Classic mode interface or pressing the F8 function key.

Smart Fan configuration page

The Smart Fan configuration page allows for graphical configuration of fan operation based on predefined threshold levels. The page offers an easy to user visualization with settings available for setting tiered fan speeds based on tied temperature thresholds, as well as temperature-based warning and fan fail warning configuration. The Smart Fan configuration page is accessed by clicking on the Smart Fan button in the pop out menu within the Classic mode interface or the Smart Fan 5 tile in the lower right corner of the Easy Mode interface.

Classic mode, Save & Exit tab, Save Profiles popup

Classic mode, Save & Exit tab, Load Profiles popup

GIGABYTE allows for storing up to eight UEFI profiles through the Save Profiles and Load Profiles functions within the Save & Exit tab in the Classic mode interface. The saved profiles contain all user configured settings from the UEFI, and can be saved to or restored from any attached storage device. The Save Profiles popup can be accessed by pressing the F3 function key. The Load Profiles popup can be invoked by pressing the F4 function key.

Classic mode, M.I.T. tab, Advanced Frequency Settings page

The Advanced Frequency Settings page accessed from the link on the M.I.T. tab houses the settings controlling the CPU and memory ratio settings. GIGABYTE enhanced this page with Ryzen-friendly settings via the CPU Clock Ratio setting, allowing for fine control in 0.25 step increments.

Classic mode, M.I.T. tab, Advanced Frequency Settings page, Advanced CPU Core Settings page

The Advanced CPU Core Settings page, accessed via the the link on Advanced Frequency Settings page, contains Expert-level CPU settings, including several AMD-specific processor settings. The AMD Cool&Quiet function setting is the AMD version of Intel's Speedstep technology with it automatically adjusting processor core speed and voltages for optimal system operation under power saving conditions. The Ryzen-specific Downcore Control setting gives fine control over the cores enabled over both CCX (CPU CompleX) units with the auto setting enabling all cores across both CCS units and a variety of other settings available (depending on the active processor) to customize the active cores within the CCX units. The analogue to Intel's HyperThreading technology lives in the SMT Mode setting (simultaneous multi-threading) enabling 2 operational threads per core in the processor. Another Ryzen-specific setting is the Opcache Control setting, allowing for disabling of the processor's integrated micro-op cache. The Ryzen's micro-op cache stores recently decoded processor instructions for power saving and speed optimizations, giving the processor immediate access to these instructions without the need to re-decode them.

Classic mode, M.I.T. tab, Advanced Memory Settings page

The Advanced Memory Settings page, accessed via the the link on the M.I.T. tab, houses many AMD Ryzen-optimized memory settings tied to their AGESA (AMD Generic Encapsulated System Architecture) protocol. In line with the latest version of that protocol, GIGABYTE integrated settings for BankGroupSwap and Gear Down Mode, both which can have a major impact on memory performance and compatibility. The Bank Group Swap setting controls how memory addresses are assigned to applications, while the Gear Down Mode setting affects the data rate on the memory-related command and data buses. More specifically, disabling the Gear Down Mode allows for manual setting of the memory's command rate to more aggressive settings (rather than the enforced 2T mode with the setting enabled). The CLD0_VDDP Control setting allows for user control over the voltage applied to the DDR4 PHY in the SoC. Note that this voltage is unique to the AGESA v1.0.0.6 update and is not the same as the VDDP voltage. VDDP voltage setting controls the voltage applied to the CPU VDDP pins.

Classic mode, M.I.T. tab, Advanced Voltage Settings page

The Advanced Voltage Settings page, accessed via the the link on the M.I.T. tab, houses all motherboard configurable voltage settings including CPU and memory related voltage settings you typically see on enthusiast class boards. Ryzen CPU specific settings include VCORE SOC and CPU VDDP voltage settings. The VCORE SOC setting controls the voltage supplied to the Ryzen processor's integrated chipset and memory subsystems. The CPU VDDP voltage, different from the CLD0_VDDP Control setting within the Advanced Memory Settings page, sets the external voltage applied to the CPU VDDP pins which affects GPU, memory, and base clock settings at high processor frequencies. .

Classic mode, Peripherals tab

The Peripherals tab centralizes control settings for all motherboard integrated components (read as non-CPU). New additions to this page include the RGB Fusion settings for fine-grain control over the integrated RGB LEDs and RGBW 12V header, the AMD CPU fTPM setting, and the USB DAC-UP 2 settings. The AMD CPU fTPM setting controls the TPM 2.0 function integrated into the Ryzen processor. The USB DAC-UP settings can be used to boost the power provided by the onboard USB 3.0 ports and USB 3.0 headers.

Classic mode, Peripherals tab, RGB Fusion page

The RGB Fusion settings page, accessed from the link on the Peripherals tab, give the user a graphical interface from which to configure operating mode and color of the board's integrated RGB LEDs as well as RGB/RGBW LED strips connected to the RGBW 12V header. The UEFI integrated interface allows for setting the LED activity to one of four modes as well as in a multitude of colors. Supported modes included Pulse Mode, Color Cycle, Static Mode, and Flash Mode.

Classic mode, Chipset tab

The Chipset tab houses chipset related settings including those for IOMMU support and the eight SATA ports supported by the X370 chipset. The IOMMU setting allows for pass-through support for supported discrete GPUs to VMs hosted on the system.

Classic mode, M.I.T. tab, Advanced Memory Settings, Channel Memory Sub Timings page

Classic mode, M.I.T. tab, Advanced Memory Settings, Channel Memory Sub Timings page continued

Channel X Memory Sub Timings pages house channel specific memory timing settings for the board. There are a total of two pages, one each for the A and B memory channels.

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