The computer freezes, displays a Blue Screen of Death (BSOD), or refuses to wake up from sleep mode.
Knowing these details will help pinpoint the exact driver download link you need. AI responses may include mistakes. Learn more Share public link
Multiple devices may try to use the same COM port number. If you encounter port conflicts:
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: nuvoton communications port driver windows 10 best
Because Nuvoton chips are customized for specific motherboards, your computer manufacturer provides the most stable version.
Version 1.2.2020.1225 is widely recognized as a compatible version for Windows 10 and 11, often packaged as nuvserial.inf .
Modern motherboards still rely on a legacy component called the . While the name sounds old, it handles essential low-bandwidth tasks that the main chipset (Z690, B550, X570, etc.) no longer manages directly. Nuvoton (formerly Winbond) dominates this market. The computer freezes, displays a Blue Screen of
If Windows 10 fails to automatically recognize your Nuvoton device, you may need to install a driver manually. Below are the most reliable, up‑to‑date driver versions for Windows 10 (both 32‑bit and 64‑bit).
Nuvoton Technology provides a variety of USB-to-serial and other peripheral controllers used in motherboards, embedded devices, and development boards. On Windows 10, the correct communications port (COM) driver ensures reliable serial connectivity for device configuration, firmware flashing, and debugging. This article explains how to identify the right Nuvoton driver, recommended driver versions, installation steps, troubleshooting tips, and best practices.
If the device appears under Other Devices with a yellow exclamation mark, or you see an “Unknown Device”, proceed with manual installation. Learn more Share public link Multiple devices may
Restart your computer and enter the BIOS/UEFI settings. Ensure that the Serial/COM Port is explicitly enabled and set to "Auto" or a standard address like 3F8 / IRQ 4 . Preventing Windows from Overwriting Your Working Driver
To avoid security risks or system damage, use these trusted sources: Official Nuvoton Support : The most secure way to get specific tools like the USB to Serial Port software is directly from the Nuvoton Technical Blog OpenNuvoton GitHub Manufacturer Websites
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Click and extract the downloaded .cab file to a folder on your desktop.