Please read the 4 Intel 82801 STICKIES posted at the top of this forum and any one of the dozens of threads identical to yours. There is no such sound chip as Intel 82801. Sound chips bear names like Realtek, Cmedia, ADI SoundMAX, VIA, or IDT (formerly Sigmatel).
The correct method to get help with locating a driver is simple.... include your computer/motherboard brand and model and say whether it's a laptop or desktop pc.