marvintheandroid :
Personally I found the MB3 to be nowhere near as good as the Soundblaster X-Fi PCI version, so I disabled onboard sound in BIOS and uninstalled the drivers and software. This is the way to do it if you have a separate sound card.
Marv
That´s because even though it runs through soundblaster software, it´s not soundblaster chip on the motherboard. Dedicated soundcards are always better than onboard sound, soundblaster software or not. And they won´t have as much interference as well.
The Realtek ALC1150 sound chip that sits on Z97x G5 board is not the worst, and with some shielding it can do well enough for gaming.