Acpi Nsc6001 Jun 2026

This issue is common on older laptops, particularly (5220, 5620, 4620, 7620) and some IBM/Lenovo ThinkPad models. This article will explain exactly what the ACPI\NSC6001 device is, why it shows up as unknown, and provide a step-by-step guide to resolving the driver issue. What is ACPI\NSC6001?

Short-range wireless communication with devices like printers, PDAs, or older mobile phones.

| Cause | Explanation | |-------|-------------| | | Your motherboard's BIOS contains ACPI tables referencing an NSC6001 device, but Windows 10/11 no longer ships with a dedicated driver. | | Incorrect driver migration | Upgrading from Windows XP/Vista/7 to 10/11 carries over an entry for NSC6001 that no longer exists in the new OS. | | Chipset driver residue | Old Intel or VIA chipset drivers sometimes leave behind NSC references even after uninstallation. | | Virtual machine passthrough | Hyper-V or VMware passthrough of legacy PCI devices can erroneously create this ACPI entry. |

Sometimes Intel or AMD chipset drivers erroneously claim ownership of the NSC device. acpi nsc6001

Restart your computer, enter the BIOS (usually F2, F12, or Delete), and choose "Load Optimal Defaults" or "Load Fail-Safe Options".

Before delving into the specifics of the NSC6001, it is essential to understand the basics of ACPI. ACPI is an open-standard interface for power management and configuration in computer systems. It was introduced in the late 1990s as a replacement for the older APM (Advanced Power Management) standard. ACPI provides a flexible and extensible framework for managing power consumption, thermal management, and system configuration.

(in some specialized multimedia laptops). Why is it Showing Up as an "Unknown Device"? This issue is common on older laptops, particularly

If disabling the device in Windows does not work, or if it keeps triggering hardware detection, you can disable it at the hardware level:

Open your PC case (if desktop) or review your motherboard manual. The NSC6001 typically exists only on boards with:

In short, is a phantom or legacy device that Windows detects on certain motherboards—often older Intel 865/875 or VIA-based systems, or surprisingly, modern embedded systems that use legacy ACPI tables for backward compatibility. | | Chipset driver residue | Old Intel

Look for the National Semiconductor PC87338 datasheet. Since the NSC6001 is the ACPI alias for this chip family, the datasheet will provide the full register-level technical specifications. 💡 Troubleshooting Tips If this appears as an "Unknown Device" in Windows:

IrDA Fast Infrared Port Driver for Acer - Extensa 5620 working on Microsoft Windows 8.1 Pro * IrDA Fast Infrared Port. * ACPI\VEN_ DriverIdentifier Microsoft Update Catalog

This device typically utilizes the following system resources for communication: Plug and Play (PnP) Fast Infrared (FIR) Port. Standard I/O Port: Often assigned to 02F8-02FF . Interrupt Request (IRQ): Usually set to IRQ 03 .

Most modern laptops no longer include IrDA hardware, as it has been replaced by Bluetooth and Wi-Fi. If you are running a modern version of Windows (10 or 11) on older hardware, you may need to manually point the Device Manager to legacy driver files or disable the port in the BIOS if it is not in use. Common Use Cases Historically, the NSC6001 port was used for:

While there is no definitive information on the ACPI NSC6001, we can make some educated guesses based on its presence in various systems and ACPI documentation. Here are a few possible functions: