Toshiba Satellite Pa3489u-1mpc Driver [portable]

The Toshiba Satellite PA3489U-1MPC is not a computer model itself, but a specific component: the Intel Wireless LAN Mini-PCI Express Card (specifically the Intel PRO/Wireless 3945ABG).

This card was commonly installed in older Toshiba Satellite laptops manufactured around 2005–2007 (such as the A100, A105, P100, and P105 series).

Here is a detailed guide regarding the drivers for this device. Toshiba Satellite Pa3489u-1mpc Driver

Frequently Asked Questions (FAQ)

Q: Is the PA3489U-1MPC driver compatible with Windows 11? A: There is no dedicated driver. However, the Windows 10 compatibility mode installation of Toshiba ACPI Common Modules v1.60 works on Windows 11 21H2 through 23H2. The Power Saver utility may not launch but the ACPI drivers will still enable charging.

Q: My PA3489U-1MPC is a battery, but Windows says "Driver Error." How? A: Windows is referring to the battery management controller inside the battery pack. This device uses a standard Microsoft driver (cMBatt.sys). If you see an error, run sfc /scannow in Command Prompt as Administrator to restore the Microsoft battery class driver. The Toshiba Satellite PA3489U-1MPC is not a computer

Q: Can I use a generic ACPI driver instead? A: Yes, but you will lose the ability to set charging thresholds, and the battery percentage may be inaccurate. The generic Microsoft ACPI driver works for basic charging but not for optimization.

Q: The new PA3489U-1MPC battery heats up while charging. Is that a driver issue? A: No. Lithium-ion batteries generate heat during fast charging. However, excessive heat (above 50°C / 122°F) indicates a faulty battery or a stuck embedded controller. Update your BIOS first. If heat persists, stop using the battery—it may be counterfeit or damaged. Frequently Asked Questions (FAQ) Q: Is the PA3489U-1MPC

Step 5: Calibrate the Battery

After installing all drivers, run the Toshiba Battery Refresh Utility (found inside Power Saver):

  1. Set the battery to discharge completely until the laptop hibernates.
  2. Without turning the laptop on, charge uninterrupted for 6 hours.
  3. Repeat once. This resets the fuel gauge.

Step 1: Identify Your Exact Satellite Model

The PA3489U-1MPC battery is compatible with over 30 Toshiba Satellite sub-models. Locate the full model number on the sticker on the bottom of your laptop. It will look like: