If you look closely at the motherboard, you will see "N1996" printed in white silk screen, usually near the PCI slots or the RAM slots. This code is actually a recognition number used to denote that the board was manufactured by for Lenovo (or sometimes as a generic MSI board).
Because this motherboard uses generic chipsets from Intel and Realtek, many drivers are not Lenovo-specific. However, using the correct Lenovo-certified drivers ensures stability, especially under Windows 7, Windows 10, or legacy operating systems. Lenovo N1996 Motherboard Drivers