I'm afraid I have run into an issue with my Antec Kühler H2O 920. When I booted up the PC this morning none of my fans worked and the computer refused to boot because of CPU overheating. The fans were connected to the case (Corsair Obsidian 650-DW-1) so I attached all the fan cables to the motherboard directly instead. All the fans started working again when I did this so I can presume the problem there was the case fan controller cables or something like that.
Sadly, connecting the cables to the motherboard brought with it another problem. My Antec Kühler H2O 920 now makes an obscene amount of noise. Pump noise to be exact. Now I have browsed around this thread and the www in general and I have seen more reports of this happening. I just have no idea why it's happening now. The pump was extremely quiet before. Could not hear it at all, but as soon as I connected it directly to the motherboard it started making this awful noise. I have even recorded it in a 15 second audio file you can download here: http://limelinx.com/f5fdi
Needless to say it is even louder than the youtube videos I have seen/heard. This was recorded with the mic closer to the fans than to the cooler ffs...
Any help would be VERY MUCH appreciated.