Open the extracted folder, right-click Setup.exe (or AsusSetup.exe ), and select . Follow the on-screen prompts and click Next .

Here is a quick compatibility table based on real-world testing:

| Nuvoton Chip Family | Recommended Driver Version | Source | |---------------------|----------------------------|--------| | NCT6779D / NCT6791D | or newer | ASUS PRIME Z390-A (2021) | | NCT6106D | 1.1.2.3 | ASRock B85 Pro4 | | NCT6687D (Ryzen boards) | 3.0.5.1 | MSI B450 Tomahawk Max | | NCT5535D (Embedded) | Reference 1.0.0.24 | Nuvoton GitHub Archive |

The for your specific system is the one provided by your motherboard vendor (ASRock, ASUS, Gigabyte, MSI, Biostar). Go to their support page, enter your exact model number (e.g., "ASUS TUF Gaming B550-PLUS"), and download the latest "Chipset" or "Super I/O" driver under the Windows 10 64-bit section.

By following this guide, you will restore full functionality to your Super I/O chip, eliminate device manager errors, and regain precise fan control on your Windows 10 workstation or gaming rig.

Avoid third-party driver updaters (Driver Booster, Driver Easy, etc.) for this specific component. Many of these tools install generic serial drivers or, worse, malware disguised as Nuvoton drivers.

: If automatic updates fail, you can manually add it by selecting Action > Add legacy hardware and choosing Ports (COM & LPT) from the list.

Visit the support page of your specific motherboard or laptop manufacturer. Search for your specific computer model and look under the , Utilities , or Others driver categories. Common official sources include:

Many Nuvoton chips manage infrared receivers used for media center remotes. If this driver is missing or outdated, your PC will not recognize IR inputs.

Windows reports that the drivers for the device are not installed.

3. Official Nuvoton Reference Drivers (Best for Legacy Support)