Official Intel Support offers legacy drivers for the G41 chipset and integrated graphics, primarily for Windows XP, Vista, and Windows 7.
To fully functionalise your motherboard, you need four primary driver packages:
Chipset and Connectivity: Equipped with the G41+82801 Chipset, offering 6 USB 2.0 ports and 2 USB 2.0 ports. Supports Core 2 Quad,
Support for Graphics Drivers for Intel® G41 Express Chipset
Usually the Realtek RTL8100C or RTL8111 series for network connectivity. Download Sources