Buzzing speakers due to video card stress?

[thebigcheese]

I use my computer for gaming and general purpose stuff, mainly, and a bit of mixing for my band when we're putting an album together. I use Yamaha HS50ms for the monitors, with the matching HS10w sub, and a Focusrite Saffire Pro 24 for my interface. Prior to noticing this problem, I was using the Scarlett 18i6 as my interface.

So here's what I notice. There is a constant buzzing sound in the speakers. The volume of the interface does not change the volume of the buzzing. However, when I load up a game, the buzzing gets worse. I am using nice Mogami balanced cables for all the audio connections, so I can't imagine those are the problem. As I said before, I was using a USB interface before (that was also not bus powered), so although the video card seems to be one cause of the problem, I have to wonder if it isn't also related to the firewire connection. I have tried plugging the interface into the wall, just to see if that would change anything, but no difference. I am using a TI-chipset firewire PCI card for the interface.

Any thoughts? Do I maybe need a new firewire card? Not sure what else it could be...

 

[Meatballx]

Does the sound become emphasized when using your scroll with the mouse wheel? Did you custom build the machine? It could be a grounding issue, I had the exact same problem with an older machine because one of the standoffs on the motherboard came loose from the case, causing the sound to buzz anytime the CPU/GPU had stress or scrolled with the mouse wheel

 

[thebigcheese]

Does the sound become emphasized when using your scroll with the mouse wheel? Did you custom build the machine? It could be a grounding issue, I had the exact same problem with an older machine because one of the standoffs on the motherboard came loose from the case, causing the sound to buzz anytime the CPU/GPU had stress or scrolled with the mouse wheel

It is custom built. I can check the standoffs. Though I also did a little more reading and remembered I have a nice Ebtech Hum Eliminator from when I was experimenting with a TC G-System, and that seems to get rid of the buzz just fine. Thanks for the tip, though!