: The standard Ethernet controller for this model is the Intel 82579LM Gigabit Network Connection . You can find version-specific files like Intel-I2xx-and-825xx-Giga....1_A12.EXE for Windows 7 (32-bit and 64-bit) on the Dell Support site .
This article targets Windows 7, but a responsible note: Since Windows 7 is end-of-life (no security patches since January 2020), using it on a networked PC is risky. However, if you must (e.g., legacy medical equipment, industrial controllers, or specialized software): : The standard Ethernet controller for this model
The OptiPlex 790’s Intel 82579LM is a rock-solid Gigabit controller. Dell’s final driver for Windows 7 (2015–2017) is stable and reaches full 1 Gbps speeds. However, if you must (e
To ensure you get the best network drivers for your Dell Optiplex 790 running Windows 7, we recommend the following sources: if you must (e.g.