I added a new tv tuner in my pc ( CableStar HD 2 [4098/3733] - TechniSat Digital - en_XX ). Each time I raise the volume and play anything with sound in it (local files in any format or streaming), the system freezes and I need to use the reboot button. If I mute the sound or keep the system volume to 2-4%, it works fine though. I removed the tuner and it works perfect again, even at high volume. The audio card is a Asus Xonar D2 (latest official driver) with 2 M-Audio Bx8a monitors. It started happening right after I placed the tuner in my pc, before even installing drivers for it.
I can't seem to find any IRQ conflicts.
The tuner works fine though, the only weird thing is that I can't disable it in device manager, only uninstall it. I also have Leadtek and Avermedia tuners, the system works perfect with them (I removed them now though).
I tried placing the cards in all the possible combinations in the pci slots.
However, when changing the audio output to s/pdif everything works fine, but the speakers I'm using need that specific jack ports. Also, using the onboard audio, everything works just fine.
The system is: Win 7 sp1 64bit, mobo Asus P7P55LX, cpu I5-750, ssd OCZ Agility3, hdd Samsung f3 1TB + another samsung eco green 2TB, 2x2 gb ram ddr3 1333mhz, gpu radeon 5750, Enermax 480W. Also tried to use Windows Xp x86 with SP3 and Win8 x64. Every driver is up-to-date, windows too.