82801EB refers to the chipset on the system, which is not the same as the audio, network or modem controllers. These controllers connect to the chipset which provide a bus of communication between these I/O interfaces and the memory controller and processor.
In this case, if you need a driver for the audio, modem and network I suggest you to check the model of the motherboard you are using and look on your motherboard manufacturer 's web site for the drivers of your mainboard.
If you are using a wholesale or branded computer, or Original Equipment Manufacturer, then check at your Original Equipment Manufacturer's site for the drivers of your computer.
