ALC861 Realtek Audio Codec IC

ALC861 is a High Definition (HD) Audio Codec IC from Realtek Semiconductor, commonly used on desktop and older workstation motherboards. It provides stable onboard audio for speakers, line-out, line-in, and microphone, and is frequently found on legacy Intel/AMD chipset boards from brands like ASUS, Gigabyte, and MSI.

When the ALC861 fails, systems may experience no sound, distorted audio, missing microphone input, or front-panel audio issues, making it a regular replacement IC in motherboard repair work.

Technical Summary

• Intel HD Audio (HDA) compliant codec

• Supports multi-channel desktop audio

• Integrated ADC/DAC for mic and line input

• Designed for stable, long-term operation

• QFN SMD package for motherboard repair