X470 Taichi - Bad EMI shielding?!

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   Hello,

I'm now a proud owner of the X470 Taichi. The only thing that annoys me is that I'm hearing EMI in my headphones. Doesn't matter if plugged-in in the front or rear. 

Is there anything I can do? What I can tell is that the GPU is causing this if it gets load.

Would a PCIe risercable to vertical mount the GPU help? Or would a external Soundcard like the ASUS Xonar U7 MKII a better deal?

Would like to hear some ideas from you guys.

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CornFlakes Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jul 2019 Location: Germany Status: Offline Points: 8	Post Options Post Reply Quote CornFlakes Report Post Thanks(0) Quote Reply Topic: X470 Taichi - Bad EMI shielding?! Posted: 19 Jul 2019 at 12:42am
	Hello, I'm now a proud owner of the X470 Taichi. The only thing that annoys me is that I'm hearing EMI in my headphones. Doesn't matter if plugged-in in the front or rear. Is there anything I can do? What I can tell is that the GPU is causing this if it gets load. Would a PCIe risercable to vertical mount the GPU help? Or would a external Soundcard like the ASUS Xonar U7 MKII a better deal? Would like to hear some ideas from you guys.

garych Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Dec 2017 Status: Offline Points: 62	Post Options Post Reply Quote garych Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 2:44am
	What audio drivers are you using? X370 Taichi should have identical audio solution, I never hear any noise from the rear output, and only some slight hiss through front output in my very sensitive IEMs. I'm using default MS drivers on Windows 10 1903.


CornFlakes Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jul 2019 Location: Germany Status: Offline Points: 8	Post Options Post Reply Quote CornFlakes Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 3:16am
	I'm using the one that are provided by ASRock on the Support page of the X470 Taichi. I also contacted asrock via facebook and they told me that this shouldn't happen and I should contact the support which i already did.

garych Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Dec 2017 Status: Offline Points: 62	Post Options Post Reply Quote garych Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 3:25am
	I'm suggesting you to remove that driver and see if the issue is still there. After installing Windows 10 1903 I found that default MS drivers work perfectly fine and I don't need to lurk for new Realtek drivers somewhere, unless you need both front and rear audio outputs to work at the same time through Realtek control panel. I tried X470 Taichi drivers from ASRock page on my X370 board because they were more recent, and I had issues with sound.


garych Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Dec 2017 Status: Offline Points: 62	Post Options Post Reply Quote garych Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 3:28am
	By "at the same time" I mean as 2 identical outputs. MS drivers still provide working outputs but only as separate devices.


CornFlakes Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jul 2019 Location: Germany Status: Offline Points: 8	Post Options Post Reply Quote CornFlakes Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 3:54am
	So I uninstalled the driver but there is still a Buzzing when the GPU is at full load. So the audio is then not properly shielded I guess

CornFlakes Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jul 2019 Location: Germany Status: Offline Points: 8	Post Options Post Reply Quote CornFlakes Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 4:16am
	I installed my XONAR DGX and the Humm/Buzzing is gone. So what to do next? I already contacted the ASRock Customer Support via Facebook they forwarded me to an email address. They told me that the audio on the board is galvanic separated and it only could be a ground fault. I hope I translated it correctly cuz I'm from germany and I contacted them in my native language

garych Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Dec 2017 Status: Offline Points: 62	Post Options Post Reply Quote garych Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 5:19am
	Are you sure your PC is properly grounded? The sound on Taichi is great and better than most ALC1220 based solutions when working properly, no need for external sound card for normal use. X470 Taichi's dynamic range is a bit lower than on X370 Taichi, but it's a very little difference.


garych Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 09 Dec 2017 Status: Offline Points: 62	Post Options Post Reply Quote garych Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 5:25am
	I might be wrong about good quality on X470 Taichi, I looked in one review, then another, and they weren't pleased with quality in the latter https://www.techpowerup.com/review/asrock-x470-taichi-ultimate/8.html


CornFlakes Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 18 Jul 2019 Location: Germany Status: Offline Points: 8	Post Options Post Reply Quote CornFlakes Report Post Thanks(0) Quote Reply Posted: 19 Jul 2019 at 5:30am
	My previous board also had a ALC1220 chip on it. It was ok for me I'm no audiophile. My PC is grounded good. Every Mainboard which was in there doesn't had the issue. The Taichi is definitely the fist one.