Your mobo is OEM, it means that you have bought your computer in a current shop?
If so, you will find all drivers you need in the website of the mark of your computer.
You can get your Chipset drivers from Nvidia (Geforce 7100). And your Lan and Audio drivers at Realtek ( network/Lan, Realtek RTL8101E ) (Audio, Realtek ALC 888S )