Yes i did disable the onboard soundcard in the bios. It was mainly for testing in BF4.
What i did was that i uninstalled all drivers++ for the x-fi card, then removed it physically from the pci slot. Then enabled onboard sound in the bios, and installed drivers and tested. Same problem. Reversed this by uninstalling all drivers++ and disabling the onboard sound in bios, and putting back my x-fi card again.
When i tested the USB headset i did have both x-fi + the usb headset tho.
As a minor tidbit, i just had some fun testing today.. What i did was load up BF4 on the "test range" where i can notice the sound bugging. 1st thing happening is the plane that is flying overhead the sound "skips" as it moves around. No distinct pattern in when this is happening, but is more or less just random at times. 2nd thing i can do is load a LMG as support, and keep firing. It will "skip sounds" randomly when i do this.
While i was doing this, i ran in windowed mode, started a 1080p MKV movie (Avatar) using MPC-HC, started another movie using VLC, then started VMWare with a windows 7 host, and started playing a music video on youtube. Also started photoshop CS5 and a couple of other things.. totalling 7.6GB of used memory (of 8GB).
Now.. all other sounds were fine.. movie.. music in VMWare (although i could sometimes hear small "pops" while playing), switching back to BF4, i still had the sound "skipping" :P
Im at a totall loss here as to why this seem to happen for me, and not for anyone else. As ive said before, no other game has this problem, and playing 2 movies at once + running vmware playing a music video from youtube SURELY should produce some sort of horrible experience? Xept for BF4 everything was running 🙂
Well well.. happy hunting, and thx for the help so far 🙂
C