Look at the bottom left of the motherboard (usually). You will likely see a chip branded Realtek (commonly ALC662 or ALC892).
Finding drivers for an motherboard (or any motherboard based on the Intel H61 chipset ) can be tricky since these boards are often older and sometimes sold under various regional brands. Quick Access Guide: How to Get Your Drivers enter eh61 motherboard drivers
: Intel HD Graphics . Since this board supports LGA 1155 CPUs, the graphics driver depends on the specific processor (e.g., i3-2100 or i5-3470). Where to Download Drivers Look at the bottom left of the motherboard (usually)
Configures the SATA controllers, USB ports, and PCI Express lanes. and PCI Express lanes.