Noisy build?

[vsdagama]

Is this normal?

http://www.youtube.com/watch?v=qRWizAhb7rI

Components:

I5 2500K
TX850 V2
Haf X
ASrock extreme4 gen3
Corsair Vengeance

I also got some more thermal/noise questions:
I'm looking to replace my stock CPU cooler.
Is there a nice silent one that would fit in my build? (Corsair Vengeance RAM -_-)
Looking to overclock the 2500K to 4.0Ghz +

Then I bought 3 CM Megaflow 200mm red led fans, and one 90mm Sickleflow
I was aiming to place the sickleflow as exhaust, 2 megaflow on top and 1 on the side.
Will this be better then the stock cooling on the HAF X? Is it overkill? Will too many fans produce too much noise?

Thanks!

 

[mosox]

Roll a paper and listen through that, probably it's the case fans. Disconnect them and see what happens.

 

[vsdagama]

on the youtube video, all case fans are disconnected, just the CPU and PSU are running

Also, is there a good program to manage my fan speeds? Or should I do it trough the BIOS?
Because SpeedFan doesn't make my rear exhaust fan and front intake fan controllable.

 

[vsdagama]

??