Save your changes and exit the BIOS (usually by pressing ). The Verdict on Legacy Hardware
Alternatively, you may have success with an older driver version:
: National Semiconductor (now part of Texas Instruments). acpi nsc6001
The 6001 wasn't designed for computers. It was designed for critical infrastructure . Its job was to sit dormant in a system for decades, sipping nanoamps from a backup battery, waiting for a specific harmonic key. Once triggered, it would override the ACPI power state, force a hard boot, and inject a 512-byte payload directly into the system’s SMM (System Management Mode)—a ring of code so privileged that not even the hypervisor can see it.
The key takeaway: Not all unknown ACPI devices are safe to disable. PNP0C0A (Battery) or PNP0C09 (Control Method) are essential. Save your changes and exit the BIOS (usually by pressing )
Right-click on it and select . (Alternatively, you can choose Uninstall device ).
If you’ve ever dug through the on a Windows PC, especially an older laptop or an embedded system, you might have stumbled upon a mysterious entry labeled ACPI NSC6001 . Often adorned with a yellow exclamation mark, this cryptic name can be a source of confusion for even seasoned IT professionals. It was designed for critical infrastructure
The advice above applies to standard laptops and desktops. However, in (ATMs, medical equipment, industrial controllers), the ACPI NSC6001 might control real-world inputs.
Extensa 7620 - IrDA Fast Infrared Port Driver for Acer - DriverIdentifier
If using Windows 10/11, you may need to manually select "Infrared devices" -> "National Semiconductor" from the Device Manager list.
If you see "ACPI\NSC6001" listed as an in your Windows Device Manager, it is because the operating system lacks the specific driver for the National Semiconductor infrared controller.