Finding drivers for a "Lenovo N1996" motherboard is a common point of confusion because . It is a regulatory compliance code (ACA supplier code) indicating the board meets Australian standards and was commonly used by MSI, who manufactured many motherboards for Lenovo.
Use (devmgmt.msc) to identify missing drivers: lenovo n1996 motherboard drivers
The Lenovo N1996 motherboard (OEM model: CIH61C v1.0 or similar) is an Intel H61 Express chipset-based board used in legacy Lenovo desktop systems. Correct driver installation is critical for stable operation of audio, network, USB 3.0, and storage subsystems. This paper outlines the component identification, driver sourcing, and installation methodology for operating systems including Windows 7, 8.1, and 10 (32/64-bit). N1996 is not a model number Finding drivers
: If you are using the motherboard's built-in video ports. Official support ends at Windows 7