LSI 3ware 9750 RAID Controller Driver

The LSI 3ware 9750 RAID Controller driver allows Windows to communicate with the controller and access storage volumes managed by its hardware RAID system. For this LSI Logic storage device, choosing the correct driver is essential for recognizing connected arrays and maintaining reliable disk access, especially when Windows runs from a RAID volume.

Key Features

• RAID volume access: Enables Windows to detect and use logical drives configured on the controller, rather than treating array members as ordinary standalone disks.
• Storage communication: Provides the controller-specific interface needed to handle read and write requests between Windows and the RAID hardware.
• Boot-volume support: Allows a compatible Windows installation to access a system volume hosted on the controller. The driver may need to be loaded during Windows Setup.
• Management compatibility: Supports communication with compatible controller-management software, where available. Monitoring and configuration utilities may require a separate installation.

How to Install

1. Confirm the controller and operating system. Check that your hardware is an LSI 3ware 9750 RAID Controller and identify your Windows version and system architecture. For Windows 11, 10, 8, or 7, verify that the specific driver package explicitly supports your configuration; compatibility should not be assumed for every release.

1. Back up important data. Before changing a storage driver, create a current backup and ensure you have recovery media available. This is particularly important if your Windows boot drive is part of an array attached to the controller.

1. Download and extract the appropriate package. Review its documentation for installation requirements, driver-signing information, and any controller firmware dependencies. If the download is compressed, extract it to an accessible folder.

1. Install the driver. Use the supplied installer if one is included. Otherwise, open Device Manager, locate the controller under Storage controllers or Other devices, select Update driver, and browse to the extracted files. During a fresh Windows installation, use Load driver on the disk-selection screen if the RAID volume is missing.

1. Restart and verify operation. After installation, restart Windows if prompted. Check Device Manager for warning icons and confirm that existing volumes are accessible. If an expected array is absent, inspect the controller configuration and driver compatibility before making changes; do not initialize or format disks that contain data.