"PCI ethernet Driver" is neither a motherboard nor a network adapter model number. Try again with something for us to work with.
If you unable to provide the proper data, open Device Manager, find and double-click the hardware device you need a driver for, click the Details tab, select "hardware id" and give me the hardware id string that begins with "PCI\VEN", (1st./top line of text only). Some
of the devices may be listed under "Unknown Devices".
Repeat for each driver needed.... or give us a valid Asus motherboard model number. Is this a notebook or desktop motherboard?
Is it a retail or OEM motherboard? If the later, please include the pc brand and model that it came pre-installed in.