Native support is strongest in Windows XP and Vista.
Right-click the device, select , and navigate to the Details tab. Verify that the Hardware IDs property matches ACPI\NSC6001 .
: The vendor and device identifier. NSC stands for National Semiconductor , while 6001 indicates their proprietary Fast Infrared (FIR) protocol chip.
ACPI\NSC6001 is the hardware ID for an "IrDA Fast Infrared Port" manufactured by National Semiconductor.
The infrared port is enabled in the BIOS, but the OS doesn’t need it. acpi nsc6001
: Specifies the exact device ID for the Fast Infrared (FIR) communication chip.
Locate the entry named , IrDA Property , or Fast Infrared (FIR) . Change its value from Enabled to Disabled . Press F10 to save settings and exit. Step-by-Step Manual Driver Installation Guide
As we continue to explore the complexities of computer hardware and software, it's essential to acknowledge the intricate relationships between system components and the ACPI standard. By understanding and addressing issues related to the ACPI NSC6001, we can improve system performance, stability, and power efficiency, ultimately enhancing the overall computing experience.
The NSC6001 chip was widely adopted by major laptop manufacturers in the mid-2000s, particularly in their business and premium consumer lines. If you own one of the following models, the ACPI\NSC6001 unknown device is almost certainly its Fast IR port: Native support is strongest in Windows XP and Vista
Open and right-click the ACPI\NSC6001 device. Click Update driver . Select Browse my computer for drivers .
If you are seeing this ID, it is likely because the BIOS/UEFI has the Infrared Port enabled
Extract the .cab contents to a folder using tools like WinRAR or 7-Zip.
The issue arises because the Windows operating system detects the hardware component via the ACPI (Advanced Configuration and Power Interface) table, but it cannot find a corresponding driver to manage it. : The vendor and device identifier
May require turning off driver signature enforcement on Windows 11. Quick fixing on older setups.
ACPI stands for Advanced Configuration and Power Interface. It is an industry specification that allows the operating system to control hardware power management. The "NSC" prefix generally refers to National Semiconductor, a manufacturer known for producing Super I/O chips and other low-level motherboard controllers.
Once disabled in the BIOS, the hardware disappears entirely from Windows Device Manager, permanently resolving the "Unknown Device" listing without requiring any third-party driver installations. 📊 Comparison of Installation Approaches