Model: ALC201
Operating System: Windows XP (Note: might work with other versions of this os.)
RealTek ALC201 Driver. This driver works for the HP Pavilion 523n onboard audio. The HP model information pages call it AC'97 Integrated Audio. However, HP does not provide any driver on their site. I looked at the chips on the motherboard, and I saw ALC201 on a tiny chip with the RealTek logo. The RealTek site (see link on this page) has all the pertinent information, with drivers from Win95 all the way on up through WinXP. The filename of the drivers for WinXP is wdm_a347.exe and it actually works!
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