[HELP!] Quieting down my Fractal Design Define R4

[winningsince1337]

I've become a bit of a nose snob as of the recent past and I want to turn my pc into Linus's ideal 'whisper quiet build'.
 
The setup:

All the 140mm fans are Fractal silent series (http://www.newegg.com/Product/Product.aspx?Item=N82E16835352007)
The 120mm fans on the radiator Rosewill rebrands of Akasa Apaches (http://www.newegg.com/Product/Product.aspx?Item=N82E16835200068)
I removed the top HDD cage for more airflow.
The radiator is held to the top of the case with rubber washers in between the case and radiator.
The rest of my rig specs are in my signature. I also have a Hyper 212 Evo at home which I could trade out for my AIO, which would allow me to put the sound proofing material back in the top of the case.
 
As far as current max temps temps:
CPU: <55 C (probably needs new thermal paste)
GPU 1: MSI 290 Gaming: Out for RMA
GPU 2: XFX Double Dissapation <72C
SSD: (on the rear side of the mobo) <37C
HDDs: <35C
 
Current Plan:
Change the AIO out for my Hyper 212 Evo & put the sound proofing covers back over top.
 
Any other suggestions on how to quiet this puppy down so I can achieve this?:
https://www.youtube.com/watch?v=u8HsjgtMzEg

[itsmyjobtoknow]

Turn down the RPM of all fans to around 700 or below.

 

Swap out all of the fans for Noctua?

 

The HDD will always be making some sort of noise when it is operating...so nothing you can do there.

 

Get a PSU that doesn't spin the fan until a certain temperature?

[nwgsolidus]

I don't think you need the floor fan for intake. The two front ones unobstructed should be more than enough. What type of noise are you getting though? Need to narrow down what is causing what noise exactly and then address that specifically rather than just making a bunch of changes and hoping for the best.

[winningsince1337]

Turn down the RPM of all fans to around 700 or below.

 

Swap out all of the fans for Noctua?

 

The HDD will always be making some sort of noise when it is operating...so nothing you can do there.

 

Get a PSU that doesn't spin the fan until a certain temperature?

I think a different PSU make a difference, it doesn't have a silent, fan off mode.

 

I don't think you need the floor fan for intake. The two front ones unobstructed should be more than enough. What type of noise are you getting though? Need to narrow down what is causing what noise exactly and then address that specifically rather than just making a bunch of changes and hoping for the best.

I have the bottom fan for my crossfire setup so it gets plenty of cool air. I believe a lot of the noise is coming from the cpu pump, it seems to be rather noisy. I'll change that out.

[itsmyjobtoknow]

I think a different PSU make a difference, it doesn't have a silent, fan off mode.

 

I have the bottom fan for my crossfire setup so it gets plenty of cool air. I believe a lot of the noise is coming from the cpu pump, it seems to be rather noisy. I'll change that out.

 

Depending on the fan on the PSU, it can either get loud or rattle. I have first hand experience with OEM PC that had shit PSU...those things were loud.

 

But luckily a lot of the new PSU in the market has the option for "silent" mode so...just choose a recommended brand such as Seasonic, XFX (Seasonic Rebrand), EVGA, Corsair-ish (not the CX)

[shibbs]

That's pretty much the same setup I have on my R5. Works great, and is dead quiet.  I have Noctua fans, though, as the Fractal quiet fans don't flow for sh*t. That being said, I don't run them full throttle, but ramp them up with CPU temperature.

[weez]

Get the rpms down and use less fans. More fans = more noise and higher rpms = more noise. 

[Ottawa_Brewer]

As others have said, most of your noise is probably coming from your AIO. My rig details are in my sig - it's a damn quiet machine, especially at low loads when the GPU fans are off.