Ensure you download the version that matches your Windows 7 architecture (32-bit or 64-bit). Choose this if your system has 4GB of RAM or less. 64-bit: Recommended for systems with more than 4GB of RAM. 3. Step-by-Step Installation Guide
If the official site is unavailable, some users turn to verified driver repositories. Note that these are not official Dell sites. DriverScape: Ensure you download the version that matches your
Click the link on the driver page and save the file (usually an .exe ). DriverScape: Click the link on the driver page
The safest and most reliable way to get your network drivers is through the . Ethernet Driver: The OptiPlex 790 Ensure you download the version that matches your
. Using official drivers ensures hardware compatibility and system stability. Primary Download Options The OptiPlex 790 typically uses an Intel 82579LM Gigabit Ethernet controller. You can obtain the drivers in two ways: Broadcom Community Individual Driver : Visit the Dell Drivers & Downloads page. Use the "Operating System" dropdown to select Windows 7 (32-bit or 64-bit) and look under the Driver Pack (CAB File)