It's a common problem with the Corsair Hydro coolers pump.
Several ways to fix it however.
1) RMA it.
2) Add a transister into the cable that draws power.
3) Connect it to a fan controller and turn it down untill it stops being noisy.
4) Ditch the Corsair fans and grab some Noctua NF-F12 fans.
5) Profit. :)

Sometimes it might just be an air bubble in the pump or in the hose, so just give it a few light taps on the pump itself and wiggle the hoses a little, mine was incredibly noisy when I first got it, whacked it onto a fan controller, never looked back, was certainly a step back from my old Noctua NH-D14 air cooler in terms of noise, I don't miss the monolothic size though.

jazes321 is my live id and i don't get why i'm being biased, you called biased  in another thread towards microsoft and now i'm biased towards sony, do me a favor and put me on ignore and don't post in my threads, now i'm biased cause i believe the specs and I believe  DF, could the 4 data engine pull off a miracle, maybe but i doubt it.

you play so little games I think you are putting way to much effort into what your next system you are getting.  Looking at your gamertag, other than few halo games, a gears and a forza game, all your games are multiplatform.  You also appear to have hardly played any of the 19 games on your gamertag.  In fact, I wouldn't be surprised if you have spent more time on here debating the next gen systems than you have spent playing the entirety of your 360 collection.  

i just got back into gaming, so i have alot of catching up to do, i won't get a nextgen system till the end of 2014.

if you aren't buying until the end of 2014 then you are getting way too into these rumors.  Relax man, wait for the annoucements!

yea thats true but i guess its a hobby of mine, reading about games, specs and sales but yea i'm not loyal to any company, what i want is the most powerful console,a reguler controller and great games which i know both 720 and ps4 will have.

I tend to just accumulate everything.  Then I can buy a game I'm interested in, even if it is a system exclusive.  I use to buy a lot of games, but not so much anymore.  Probably because when this gen started I was a best buy employee, now I'm a teacher.  

I'm not very good at completing games anymore... but I'm still a sucker for new technologies. 

its better to rent most games, if you only play single player, for me this gen just has to many games that i'm interested in, unlike any gen since the 16 bit era, so better to rent complete and experiance the next game.

if you are looking at renting then you should probably be looking at sony, regardless of specs.  The playstation plus program, while random I guess, is a great way to essentially rent games.  Unless microsoft follows suit and offers something similar, it seems like that is probably the best bang for your buck.  

For me, I'm way to sporadic with my game playing to rent games...