Static Noise In Monitor Speakers After Build

[milkywaymaps]

Hello everyone. Finally got my build up with audio and internet.

Noticing some static in my studio monitors being routed through a USB interface. I've tried using different ports and putting different components on separate power strips in case it was a grounding issue.

Read that it could be the spinning of my 2nd hard drive. Anyone have other ideas?

 

[milkywaymaps]

Purchased a USB isolator. Now my computer won't recognize the audio interface.

The noise is completely gone though. I'm wondering if there's a way to eradicate the ground loop from within the tower.

Will report back.