CPU noise leaking into speakers.

Status
Not open for further replies.

tohex

Honorable
Sep 9, 2013
7
0
10,510
Hello,

I'm getting astounding levels of static/sounds coming through my speakers and I'd love some suggestions to see if I can get rid of it! The noise increases ten fold when I move the mouse and if I load something like Farcry 3 (that's the worst I've seen it) it's seriously peaking.

Please note: this is only while I run through my speakers. When using headphones there is no whine/static etc at all.

I have done my research and it seems a lot of people have a similar problem except they often have it through their headphones as well. I've tried a lot of the fixes but in my case the static/CPU noise persists!

My testing has led me to believe it has nothing to do with the GPU. I tried removing that completely and the static was just the same. I don't think it is the actual Xonar STX because I have tried that in 2 different PCI slots with the same outcome. I tried removing it all together and using the on board sound and the noise was still at the same pitch and volume. I don't believe it is the interconnects because I have tried changing those to shielded cables, tried cleaning the contacts and moving the cables around to see if I could find a 'sweet spot' with no difference what so ever. I don't believe it is the speakers because if I run something as low-fi as my iPod as the source there is no hum!

I've moved onto the BIOS and tried disabling the EIST (Enhanced Intel SpeedStep Technology) and all of the 'C' mode things. I read that this fixed a similar issue for some people. No dice.

Unless someone has another suggestion for me to try, I'm at a junction;
- Is a ground loop isolator likely to clean up my problem?
- Buy a hum reducing thing such as a ART CleanBOX II or ART DTI 2?
- Do I just buy an external DAC and use that when using my speakers? This sucks as I like to use the EQ a bit on the Xonar software.

My system;
Asus Z87 Gryphon
4670k @ 4.4GHz
EVGA Titan
Asus Xonar STX
Corsair AX 860

Audio setup;
Swan H4 Monitors
Swan H10 Sub
Sennheiser PC 360
 

tohex

Honorable
Sep 9, 2013
7
0
10,510
I have not tried a Linus liveUSB. I'll look into making one of those and see what happens.

Hope it isn't the PSU. The system was only built about 2 weeks ago!
 

tohex

Honorable
Sep 9, 2013
7
0
10,510
Currently, yes it is all plugged into one power board and outlet. Is that horribly bad practice?

During my testing I did try using a different power power board and outlet but I don't remember the results exactly so I will give that another go.
 

tohex

Honorable
Sep 9, 2013
7
0
10,510
To answer the question I missed earlier; yes everything is on a grounded socket.

I tried running the speakers from the headphone port and the same problem occurs. Move the mouse and there is instant feedback/noise whatever in the speakers.

Edit: The fact that it still happens running from the headphones port on the speakers blows my mind. There is nothing even remotely audible in the headphones even if I max the volumes and seriously listen!
 

tohex

Honorable
Sep 9, 2013
7
0
10,510
I have just tried removing the sub from the equation. It's still there!

I've ordered an RCA ground loop eliminator to try - was only $12 or so. I can't find an alternative to the 'Hum X' by ebtech in Australia though which is a shame.
 
Status
Not open for further replies.

TRENDING THREADS