Topic: RME HDSPe AIO: Strange Noise when audioplayback

Hello,
i have a new Audio-PC from DigitalaudionetworX Berlin and i use Nuendo7 with the HDSPe AIO.
Sometimes when the audio is playing i have a strange very loud noise on the output and after
this nuendo crash it.
Is the HDSPe broken? I have no idea.
I have created a dump-file - but it is 3.5GB
Any ideas?