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I have a raidmax case and after having to pull the front off to fix an
intermitting audio out jack, I found the USB and Audio grounds were
tied together on this litle PCB. The PCB has 2 USB and Audio In and
Audio Out jacks. I used a box cutter to cut and isolate grounds. The
forever whine I've heard is completely gone. The audio is so clean I
can't even hear a hiss.

Harry

[Arny Krueger]

wrote in message

I have a raidmax case and after having to pull the front
off to fix an intermitting audio out jack, I found the
USB and Audio grounds were tied together on this litle
PCB. The PCB has 2 USB and Audio In and Audio Out jacks.
I used a box cutter to cut and isolate grounds. The
forever whine I've heard is completely gone. The audio
is so clean I can't even hear a hiss.

Good show!

Moral of the story is that the chassis (case) wiring of some computer
hardware was designed by absolute idjiots.