[dsio]

Another interesting quirk. It makes clicking noises when you change certain settings. When I say that, I don't mean clicking in audio, I mean the actual card itself goes click clack even with nothing plugged into it.

Was worried it was something arcing, and called ASUS. Person on the phone had no clue and passed me to a technical guy. He says "I wouldn't worry sir, that's just the relays switching".

I laughed and said "relays in a computer?"

He said, yeap. The Xonar D2X uses a series of high quality mechanical switching relays on the analog side.

That is something I've never heard of before on a soundcard. Its not quiet either, its as loud as an automotive relay. Only clicks when booting and then when changing major settings that you rarely do, but still interesting.