In our previous reviews of Asus products we have already talked about Asus EFI BIOS – an overall very successful implementation of the UEFI standard (Unified Extensible Firmware Interface). Therefore today we are going to briefly refresh your memory of the major BIO sections and their parameters and settings.
By default, there is “EZ Mode” enabled in the BIOS. It performs mostly informational functions, because there are barely any configurable parameters there. You can check the basic system settings, some monitoring data, select an energy-efficient or performance mode and set the order of boot-up devices by simply dragging and dropping them with the mouse pointer.
You can quickly switch from “EZ Mode” to “Advanced Mode” by pressing F7, or use the F3 hot key to jump over to one of the most frequently used BIOS sections.
You can switch from “EZ Mode” to “Advanced Mode” every time you enter the BIOS, or press F3 key which also works if pressed while in any other BIOS section, yet it could be much more convenient if you made “Advanced Mode” a default setting. In this case the first section you see will be the familiar “Main” section, where you can receive some basic system information, change the interface language and set up date and time. In the “Security” sub-section you can set the user and administrator passwords.
Most of the overclocking-related options are traditionally gathered in the “Ai Tweaker” section. The main section window allows you to change the frequencies, multipliers and voltages. You don’t need to go over to the “Monitoring” section to check the current voltages, as they are all listed right here next to each of the parameters used for changing these voltages, which is highly convenient. The voltages may be set above or below their nominal values.
As usual, some parameters are singled out into individual sub-sections in order to unload the main section a little bit. “OC Tuner” parameter only looks like a sub-section, but in reality it helps to automatically overclock the system. The memory timings can be configured on an individual page. They are indeed very numerous, but still very easy to work with. You can see all timings that the mainboard sets for each of the two memory channels. And you can adjust only a few selected timings, such as the main ones, for example, leaving all other settings at defaults.
The “CPU Power Management” sub-section allows configuring the parameters affecting “Intel Turbo Boost” technology. However, you do not have to do that, because the board will automatically adjust everything to match your selected overclocking goals.
You can’t help noticing numerous options related to the power and energy-efficiency of the digital DIGI+ voltage regulator. You can configure Asus’ proprietary power-saving technologies that allow changing the number of active phases in the voltage regulator circuitry depending on the CPU utilization right in the BIOS. “CPU Load-Line Calibration” technology that prevents the CPU Vcore from dropping under heavy load may be not only enabled or disabled, but also adjusted to deliver the desired effect.
The functionality of the parameters in the sub-sections of the “Advanced” section is pretty self-explanatory.
The “CPU Configuration” sub-section reports the basic info about the processor and allows managing some processor technologies.
All parameters related to power-saving are singled out on a separate page called “CPU Power Management Configuration”.
“Monitor” section tells us the current temperatures, voltages and fan rotation speeds. You can select one of the preset modes for the processor and two case fans from a pretty standard list including “Standard”, “Silent” and “Turbo” modes. You can also select the parameters manually. Unfortunately, both processor fans can only be adjustable if they have four-pin connectors.
The “Boot” section allows you to adjust your boot-up parameters that will be applied on system start-up. By the way, this is where you have to replace the default “EZ Mode” with “Advanced Mode”.
Now let’s quickly refresh the functionality of the “Tools” section.
The built-in “EZ Flash 2” utility for BIOS reflashing is one of the most convenient and functional programs of the kind. Unfortunately, they have eliminated the option that allowed saving the current BIOS version before reflashing a new one.
Asus mainboards allow saving and then quickly loading eight full BIOS settings profiles. Each profile may be given a brief descriptive name reminding you of its contents. They still haven’t fixed the issue that doesn’t allow you to save disabling of the startup image in the settings profile, but they brought back the ability to exchange BIOS settings profiles with other users, which was lost upon transition to the EFI BIOS. From now on the profiles may be saved onto external media and loaded from them.
Just like on mainboards from many other makers we can read the information in the memory modules SPD, including the XMP (Extreme Memory Profiles).
The last section is called “Exit”. Here you can apply the changes, restore the defaults or go back to the “EZ Mode”.