Buzzing/static in front panel headphone jack

sookainian

Chassis Packer
Original poster
Aug 17, 2020
13
1
Any one know why when i connect my headphone to the front audio port there is buzzing/static sound ?

I tried different headphone and all having the same issue.

But if i connect my headphone directly to the rear of the motherboard, there is no buzzing/static sound.

Is my front IO port faulty ?

My setup:
Ncase M1 V6.1
Asus Z490 I gaming
i9-10900k
rtx3070 tuf
corsair 32gb dom
samsung m.2
 
Last edited:

tinyitx

SFF Guru
Jan 25, 2018
1,548
1,406
This buzzing, I suspect, is caused by interference due to poor shield and/or grounding of the cable and front panel. If so, then this is a faulty front IO panel unit.
The possibility is small as if a batch is bad, then others would have reported this but there does not seem so.

Maybe you can check to see if the cable passes by/over some components (which might induce interference). Move the cable around to avoid coming close to any component to see if this improves. May also borrow a ferrite bead and see if it can eliminate the noise?
 

Gilles3000

Trash Compacter
Oct 6, 2018
46
22
I've noticed front panel audio issues on numerous cases in the past, now I just remove the front panel audio cable on every new case I get...

No point wasting space and time on a cable that doesn't work properly anyway.
 

Beeblebrox

What's an ITX?
New User
Nov 25, 2020
1
0
Having a similar issue on my ncase. No problems with the rear audio out. But buzzing noises on multiple devices and cables if I use the front audio port.
 

Necere

Shrink Way Wielder
NCASE
Feb 22, 2015
1,652
3,137
I've just tested a V6.1 combo port with a set of headphones (not a headset) and found the sound to be clear.

For those of you with problems, can you answer the following questions:

1. Is your combo port plastic (black) or metal (silver)? We switched from metal to plastic from V6 -> V6.1.

2. Does the issue persist if you remove the front I/O plate?

3. Are you using headphones with a TRS connector or a headset with TRRS?


Would also like to hear from anyone who has no issues with the front audio.
 

sookainian

Chassis Packer
Original poster
Aug 17, 2020
13
1
I've just tested a V6.1 combo port with a set of headphones (not a headset) and found the sound to be clear.

For those of you with problems, can you answer the following questions:

1. Is your combo port plastic (black) or metal (silver)? We switched from metal to plastic from V6 -> V6.1.

2. Does the issue persist if you remove the front I/O plate?

3. Are you using headphones with a TRS connector or a headset with TRRS?


Would also like to hear from anyone who has no issues with the front audio.
1. Black

2. Yes

3. I've tried simple headphones like apple ear piece to my ultimate ears inear monitors. All having buzzing.

Right is Apple earpiece
Left is Ultimate Ears monitors

 

sookainian

Chassis Packer
Original poster
Aug 17, 2020
13
1
I've just tested a V6.1 combo port with a set of headphones (not a headset) and found the sound to be clear.

For those of you with problems, can you answer the following questions:

1. Is your combo port plastic (black) or metal (silver)? We switched from metal to plastic from V6 -> V6.1.

2. Does the issue persist if you remove the front I/O plate?

3. Are you using headphones with a TRS connector or a headset with TRRS?


Would also like to hear from anyone who has no issues with the front audio.
Did you test it when the GPU is under load ?

I notice this issue only happened during gaming or during high graphic intense application.

If I just watch Youtube or play music, there is no buzzing sound from the front I/O port.

So most likely during heavy GPU load, the audio port is picking up noise from the GPU due to bad shielding on the audio port ?
 

Necere

Shrink Way Wielder
NCASE
Feb 22, 2015
1,652
3,137
Did you test it when the GPU is under load ?

I notice this issue only happened during gaming or during high graphic intense application.

If I just watch Youtube or play music, there is no buzzing sound from the front I/O port.

So most likely during heavy GPU load, the audio port is picking up noise from the GPU due to bad shielding on the audio port ?
Yes, I also tested under gaming load and had no noise.

It's difficult to tell where the problem is. It could also be poor shielding on the motherboard itself.