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The Mobile Intel(R) Processor Family IO PMC - 9D21 driver refers to a device driver related to the Intel Processor I/O (Input/Output) Power Management Controller (PMC). This controller is part of Intel’s Mobile Processor Family, typically found in laptops or mobile devices that use Intel processors.

What is the Mobile Intel(R) Processor Family IO PMC - 9D21?

The IO PMC is a system management component that plays a role in managing power and system resources in a computer, specifically in terms of how the processor interacts with other components. The 9D21 part is likely a hardware identifier for this particular component. This driver is responsible for ensuring that the power management features of Intel's mobile processors work correctly with the operating system.

Why is this Driver Important?

How to Install the Mobile Intel(R) Processor Family IO PMC - 9D21 Driver

There are two main ways to install or update this driver: Windows Update or manually downloading it from Intel or your system manufacturer.

Method 1: Using Windows Update (Recommended)

  1. Open Settings:
    • Press Windows + I to open Settings.
  2. Check for Updates:
    • Go to Update & Security > Windows Update.
    • Click on Check for updates. Windows may find and automatically install the correct driver for the Mobile Intel Processor Family IO PMC.
  3. Restart your Computer:
    • After installation, restart your computer to apply the changes.

Method 2: Manual Installation from Intel or Manufacturer

  1. Identify the Processor and System Model:

    • You can use Device Manager to find the device ID for the driver:
      • Press Windows + X and select Device Manager.
      • Expand the System devices section and look for Mobile Intel(R) Processor Family IO PMC - 9D21.
      • Right-click on the device and choose Properties.
      • Under the Details tab, choose Hardware Ids to identify the exact model.
  2. Download the Driver:

    • Intel does not always offer individual drivers for this particular component, as it often comes bundled in chipset drivers for your system.
    • Visit the Intel Download Center and search for Intel Chipset Driver or your processor’s family.
    • Alternatively, if you are using a laptop, visit the support page for your laptop manufacturer (e.g., Dell, HP, Lenovo, etc.) and search for chipset or power management drivers for your specific model.

    Here's an example search for Intel chipset drivers:

  3. Install the Driver:

    • Download the driver file and run the installer.
    • Follow the on-screen instructions to install the driver.
    • After installation, restart your computer.

Method 3: Device Manager (Manual Update)

  1. Open Device Manager:
    • Press Windows + X and select Device Manager.
  2. Update the Driver:
    • Right-click on Mobile Intel(R) Processor Family IO PMC - 9D21 under System devices.
    • Select Update Driver.
  3. Search Automatically:
    • Choose Search automatically for updated driver software.
    • Windows will attempt to find the best driver for the device.
  4. Follow Instructions:
    • If a suitable driver is found, it will be installed automatically. If not, you may need to manually install the driver as described in Method 2.

Method 4: Use Intel's Driver & Support Assistant (DSA)

  1. Download and install Intel® Driver & Support Assistant from Intel’s official site.
  2. Run the tool, and it will scan your system for Intel hardware.
  3. It will provide a list of recommended drivers for your system, including chipset drivers and other Intel components.
  4. Download and install any drivers related to the chipset or power management controllers.

Verifying the Driver Installation

After installation, you can verify if the driver was installed correctly:

  1. Check in Device Manager:
    • Open Device Manager (Windows + X > Device Manager).
    • Look for the Mobile Intel(R) Processor Family IO PMC - 9D21 device under System devices.
    • Right-click on the device and select Properties.
    • Ensure there is no warning icon (yellow triangle) indicating issues with the driver.
  2. Check Driver Version:
    • In the Device Manager > Properties > Driver tab, check the Driver Version to make sure it is up-to-date.

Troubleshooting

By following these steps, you should be able to successfully install or update the Mobile Intel(R) Processor Family IO PMC - 9D21 driver, ensuring that your Intel processor’s power management and system resource functionality works as intended.