H100i fan noise please help

So I got my h100i about 6 months ago. The machine was working great, but then I decided to get sp120 quiet editions. Then I started hearing this sound when I ramped up the fans: http://ift.tt/1Brfkp9 and I do not know what to do. I switched back the regular h100i fans and noticed it there too. I have tried reinstalling windows and plugging the fans in to the motherboard, but the sound remains. Please help. Thank you.



I do not want to RMA.