- Fan Xpert 4 allows you to control CPU and chassis fans with custom modes and curves in AI Suite 3 and Armoury Crate.
- Advanced features such as Smart Mode, AI Cooling and fan stop reduce noise while maintaining safe temperatures.
- Common problems are solved by checking connections, retuning, and avoiding conflicts with other programs.
- External tools like Fan Control expand the possibilities with highly detailed curves and compatibility with multiple sensors.
Properly controlling PC fans is key to preventing your computer from sounding like a... jet turbine Every time you open a game or render a video, ASUS motherboards incorporate Fan Xpert (within AI Suite 3 or Armoury Crate), a very powerful tool for fine-tuning the behavior of all the fans connected to the motherboard. If used correctly, it allows you to achieve a perfect balance between silence and temperature.
In this article you will find a very detailed guide on how Fan Xpert 4 works, how to use its automatic modes, and how to create your own. custom fan curvesWhat to do when it doesn't respond as it should, and how to combine it with third-party software like Fan Control when you need even more flexibility. All explained step by step, with Tricks practical and taking into account the most common problems that users usually encounter.
What is Fan Xpert 4 and what is it used for?
Fan Xpert 4 is a tool included in ASUS software packages (AI Suite 3 in older versions and Armoury Crate in newer motherboards) that allows manage all connected fans to the motherboard: CPU_FAN, CPU_OPT, CHA_FAN, M.2_FAN, H_AMP, RAD_FAN, etc., depending on the motherboard model.
Its main function is to give you control over the rotation speed so you can adjust the cooling system's behavior according to your preferences, whether prioritizing a Silent equipment or maximum ventilation to keep temperatures under heavy load.
In addition to simply increasing or decreasing RPM, Fan Xpert 4 allows you to define temperature-based fan curves, choose which thermal sensors to use as a reference, and activate a mode of Artificial Intelligence (AI Cooling) and use preset modes such as Silent, Standard, Turbo or Maximum Speed with a single click.
Differences between Fan Xpert in AI Suite 3 and in Armoury Crate
Depending on your motherboard generation, Fan Xpert may be integrated within AI Suite 3 or within Armory CrateThe basic operating principle is similar, but there are important nuances.
On older ASUS motherboards (for example, many Z390, X470, etc.), Fan Xpert 4 is usually part of the AI Suite 3 package. From there you can open the dedicated fan module, perform the car tuning and work with all available modes, both predefined and custom.
On the most modern plates, especially Intel For 600 series motherboards (Z690, B660, etc.) and AMD AM5, ASUS has integrated Fan Xpert 4 within Armoury Crate. In this case, access is through the device section (the motherboard) and you will find the Fan Xpert panel along with other utilities of the board.
It's important to note that if your motherboard is an Intel 600 series or an AMD AM5 or newer, official Fan Xpert support remains within Armoury Crate; if you're using an older motherboard, you'll typically continue working with AI Suite 3ASUS even clarifies that if Fan Xpert doesn't appear in Armoury Crate and your motherboard is older, you'll have to resort to AI Suite 3.
How to use Fan Xpert 4 in AI Suite 3 step by step
If your motherboard uses AI Suite 3, the process for controlling the fans is fairly straightforward, although it's advisable to follow a specific order to ensure correct detection and calibration and to take full advantage of all the features, such as... smart mode or the RPM setting mode.
To begin, open AI Suite 3 from the shortcut Windows or from the icon in the system tray. Once inside, locate the Fan Xpert 4 module and go into it: that's where you'll see the panel with all the detected fans, their curves, and the different modes.
The first thing we recommend doing is using the option to Fan adjustment (Self-tuning). This process performs a series of automatic tests: it lowers and raises the speed of each fan to determine its actual range (minimum stable speed, maximum speed, response to temperature changes, etc.). For a few minutes, you will hear them speeding up and slowing down.
When the tuning process is complete, the Fan Xpert status will show that it is Available. From that point on, you can choose one of the predefined modes for all fans: Silent, Standard, Turbo, or Full Speed. The mode you select will be applied by default to all the fans connected.
If you want to be more precise, you can move between specific fans using the left/right arrows inside the panel. Each fan has its own curve and parameters, so you can, for example, leave the CPU in a more aggressive mode and the case fans in a quieter profile.
Intelligent Mode and Curve Creation in Fan Xpert (AI Suite 3)
The heart of Fan Xpert 4 is the so-called smart modewhere you can edit the RPM/temperature curve of each fan by dragging points with the mouse. It's not just a fixed percentage adjustment, but a dynamic behavior based on temperature.
Clicking on a fan's diagram takes you to the settings screen where the curve is displayed. Each temperature/percentage It represents a point on the graph that you can adjust to define the fan's response based on temperature.
In this mode, you can define the fan's acceleration (spin up) and deceleration (spin down) times. These parameters prevent the speed from changing abruptly when the temperature fluctuates slightly; instead of drastically increasing and decreasing, the curve is "smoothed out" using these parameters. response times.
From the Source option, you can select one or more heat sources (up to three) that will control the fan curve. The speed will adjust according to the temperature. highest among them, so that, for example, a chassis fan can respond to the combination of CPU, GPU and motherboard temperature.
Finally, AI Suite 3 also offers RPM fixing mode (Fixed RPM Mode), where you don't define a curve but a fixed point. In this mode, you drag an arrow or a slider to select the exact RPM at which you want the fan to spin constantly.
AI Cooling and special Fan Xpert 4 modes
On recent ASUS motherboards, especially those based on the Intel Z490 chipset and later, Fan Xpert 4 adds a feature called AI-CoolingThis feature goes a step beyond preset modes and static curves.
AI Cooling monitors the system's load and temperature over a set period and, when it detects that the equipment is in a stable load state, speed down from the fans to minimum necessary To maintain performance without causing overheating. The goal is to achieve a significant noise reduction without a spike in temperature.
To use AI Cooling, you need to have the fans connected to certain motherboard headers that support the function: normally CPU_FAN, CPU_OPT, CHA_FAN, M.2_FAN, H_AMP and RAD_FANHowever, this may vary depending on the specific motherboard model. ASUS clarifies that AI Cooling compatibility depends on the series; for example, the Intel Z490 series officially supports it.
When you activate AI Cooling, the software takes control of all fans connected to compatible headers and applies its own algorithm. This means that, in many cases, custom curves and some special modes, such as certain extreme silence variants, may be replaced by the software's built-in algorithm. automatic behavior of IA.
In addition, there is an Armoury Crate Extreme Silent Mode which further reduces the RPM and, after the fan is tuned, also allows the automatic stop to be activated so that the fans stop completely when the load is very low and the temperature allows it.
Fan Xpert 4 in Armoury Crate: interface and options
On newer ASUS motherboards, fan control is handled directly from Armoury Crate, where Fan Xpert 4 is integrated as a module within the dedicated fan section. motherboardThe structure remains similar, but the interface is more modern and integrates with the rest of ASUS's utilities.
To access it, open Armoury Crate from the Windows Start menu, select your motherboard in the Devices section, and go to the Fan Xpert section. From there you will see the List of detected fans, the curves, the operating modes and the auto-tuning option.
The first step, just like in AI Suite 3, is to use Car tuning Fan Tuning, which performs automatic calibration of each connected fan. You'll see a process similar to AI Suite 3, where the fans' speeds vary while the system determines their operating limits.
Once the setup is complete, Armoury Crate lets you quickly switch all fans to one of four preset modes: Silent, Standard, Turbo, and Maximum Speed. This switch can be made from the Fan Xpert panel itself or from the module. Fan speed within the Armoury Crate General Control Panel.
Each fan can be selected individually from the list (e.g., CPU Fan, Chassis Fan 1, Chassis Fan 2, etc.). In Smart Mode, you can drag points on the graph to adjust the fan's power percentage at different temperatures. table on the right where the minimum RPMs associated with each power level are shown.
Advanced options in Armoury Crate: Smart Mode, fan stop, and AI Cooling
The Fan Xpert Intelligent Mode in Armoury Crate adds several interesting options, designed to make the fan's behavior as efficient as possible. soft and discreet possible without losing cooling capacity when needed.
In addition to the curve points, you can adjust the Fan Acceleration Time y The Time Fan Deceleration parameters determine how quickly the fan responds to a temperature increase or decrease. Higher deceleration times mean the fan takes longer to move from one point on the curve to another, reducing abrupt noise changes.
In this Intelligent Mode, you can activate what's called Extreme Silent Mode. When activated, Armoury Crate further reduces the minimum fan speedprioritizing noise reduction whenever the temperature allows and without exceeding the safe limits marked on the curve.
Once that mode is activated, you have the additional option to enable the function Fan StopThis causes the fan to simply stop below a certain temperature threshold instead of spinning at low RPMs, eliminating any noise at idle. This is especially useful for chassis fans or even CPU fans when the computer is idle.
Of course, we mustn't forget the Fixed RPM Mode option: if you select it, you can drag a slider to set a specific fan speed. Armoury Crate warns against going too far either way, as an excessively low speed can cause overheating, and a consistently high speed can lead to damage. unnecessary noise and greater wear and tear.
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