i've gotten a new headset (Sennheiser U 320) today and notice some static noise when i don't have any other sounds. the noise doesn't seem to change at all when i change the volume of the headset's speakers or microphone, and even when i 'disable' the speakers/microphone under windows sound settings. it's always present as long as the headset is plugged in (usb) and the pc has power, even immediately after hitting the power button on startup, and before the power is turned off on shut down.
after looking around the interwebz for ways to get rid of it and trying a few different things without any noticeable improvements, one suggestion that keeps coming up is simply to get a dedicated sound card (as i'm currently using onboard sound). so i have two questions now:
1) is it even possible that the problem is caused by the onboard sound, if changing sound settings does not appear to make any difference?
2) if yes, could you recommend a (preferably cheap^^) sound card that works with this build and is used almost exclusively for gaming?