Intel Motherboards - Z370 Gaming-ITX/ac ALC1220 Optical SPDIF 5.1/7.1

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Z370 Gaming-ITX/ac ALC1220 Optical SPDIF 5.1/7.1

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=7305
Printed Date: 02 Aug 2025 at 8:57pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Z370 Gaming-ITX/ac ALC1220 Optical SPDIF 5.1/7.1

Posted By: mortemas
Subject: Z370 Gaming-ITX/ac ALC1220 Optical SPDIF 5.1/7.1
Date Posted: 15 Jan 2018 at 11:40am

OK, I've got the Fatal1ty Z370 Gaming-ITX/ac with "new" ALC1220 codec and I cannot get 5.1 audio out of the Realtek digital out (Optical SPDIF). It only works through analog outputs on the rear io panel. I don't see Optical 5.1 or 7.1 options in both Realtek HD Audio Manager and in Windows 10 playback devices under Realtek Digital Output Properties. I've spent hours trying to fix this and still it does not work.