Topic: FF800 powering down
In posts some days ago (http://www.rme-audio.de/forum/viewtopic.php?id=7490 and http://www.rme-audio.de/forum/viewtopic.php?id=7507 -> with NO RESPONSE from RME tect supprt...) I stated I perform stability test with relatively heavy DSP runnig for 8 hours on uninterrupted comp in order to discover very rare but fatal crash with one of my two FF800 units. Yesterday it finaly happened and I got luck I just look at that moment into RME rack. Quite loud "top" was comming out of speaker stack connected directly to FF800 outputs and I saw FF800 powered down (all lights down) and in short moments back up (with no "top" in speakers).
I have to restart audio streaming in my app and got things up again. There was no system restart required (using Win 7). The same loud "top" came along during all crashes I had. But in the past I was not standing near the FF800 so I was not able to see it powered down and then up.
I do not use any UPS or power conditioners as they are not required at my opinion (all other gear works without trouble). Is FF800 suspectible to voltage fluctuations? Is it suspectible to possible potential between neutral and ground wire in power plug? Or it is just slowly dying FF800's power supply screwing me up?
Thanks in andvance kindly hoping to get any usable answer from tech support...