Intel(R) 5 Series/3400 Series Chipset Family 4 port Serial ATA Storage Controller - 3B20 Driver

The Intel(R) 5 Series/3400 Series Chipset Family 4 port Serial ATA Storage Controller – 3B20 driver helps Windows recognize and communicate with the Intel storage controller that connects SATA drives to your computer. It is intended for compatible older desktops and workstations that need their storage controller identified correctly after a Windows installation, or require a suitable replacement for a missing or incompatible driver.

Key Features

• SATA controller recognition: Helps Windows identify the Intel 3B20 storage controller and use the appropriate storage-driver configuration.
• Drive communication: Supports communication between the operating system and SATA storage devices attached to the controller, subject to the system’s hardware configuration.
• Legacy Windows options: Driver packages may cover Windows 10, 8.1, 7, Vista, and XP; check the individual package for its exact supported editions and architecture.
• Hardware-specific matching: Lets you select a package for this controller rather than relying on a similarly named Intel storage device.

How to Install Intel(R) 5 Series/3400 Series Chipset Family 4 port Serial ATA Storage Controller – 3B20 Driver

1. Confirm your hardware. Open Device Manager and locate the controller under IDE ATA/ATAPI controllers, Storage controllers, or Other devices. Check Properties > Details > Hardware Ids for a matching Intel device identifier, typically including `VEN_8086&DEV_3B20`.
2. Choose a compatible package. Before selecting an Intel(R) 5 Series/3400 Series Chipset Family 4 port Serial ATA Storage Controller – 3B20 driver download for Windows, confirm your OS version and whether it is 32-bit or 64-bit. For Windows 10/11 systems, do not assume compatibility: Windows 11 is not included in the listed supported operating systems.
3. Download and prepare. Choose a trusted free download that explicitly supports your controller and operating system. Back up important files and create a restore point if available before making storage-driver changes.
4. Install the driver. Run the included installer, or extract the package and use Device Manager’s driver update option to browse to its folder. Do not force an incompatible driver or change the BIOS SATA mode to make a package install.
5. Restart and verify. Restart if prompted, then check Device Manager for warnings and confirm that connected drives remain accessible.

Keep your driver updated when a compatible release addresses a problem or improves support for your configuration. The latest version is only appropriate if it supports your exact controller and Windows edition; a working, stable driver does not always need an update.