Home » Questions » Computers [ Ask a new question ]

Static when metal USB plug touches my case, and other electrical problems

Static when metal USB plug touches my case, and other electrical problems

I have an aluminum PC case. Whenever the metal USB plug from my external drive contacts the front, I get crackling from my speakers, which are connected to an external USB soundcard. (This crackling happens even if they're not connected to the actual output jack.) A few possibly related problems: my audio occasionally starts popping once every few minutes, and my USB devices sometimes play the "connected" sound in Windows even though they're already connected, as if they're briefly disconnecting.

Asked by: Guest | Views: 244
Total answers/comments: 1
Guest [Entry]

Fixed it. Turned out that the front panel had a grounding wire that needed to be connected to a case screw.