Realtek AC'97 Audio Driver for Windows Vista supports all ALC series audio chipsets from ALC101 up to ALC861. It is used as onboard
Featuring four 16-bit two-channel DACs and a
Two integrated 50mW/20ohm headphone
The ALC850 integrates an on-board dual PLL clock generator (14.318MHz and 24.576MHz), saving the cost of a 24.576MHz crystal. A PCBEEP generator is built-in and can be programmed by the BIOS to generate POST beeps without a buzzer. S/PDIF input and output functions are also supported, offering easy connection of PCs to consumer electronic products such as AC3 decoders/speakers, and mini disk devices.
The ALC850 supports host/soft audio from Intel ICHx chipsets, as well as audio controller-based VIA/SiS/ALi/