Doing some dust cleaning and need help setting up my fans for best airflow (push/pull?)

[Noose]

So I'm doing some dust cleaning in my case and I need help with my airflow.

 

I don't know much about it, and I would really like if I could get any pointers. 

 

My case is a Fractal Define R3. 

 

As you can see in the photos, I have a rear mounted 120mm fan, a front mounted 120mm  fan. and 2 120mm fans on the radiator. 

 

Should the radiator fans pull air or push air?

 

I also have 2 extra fans I could mount. 

 

Specs:

 

MSI Z77A-G43

 

Intel Core i5-3570K OC @ 4Ghz

 

Silver Power SP-S650M

 

Corsair Vengeance DDR3 1600MHz 16GB

 

Gainward GeForce GTX 670 

 

Cooler Master Eisberg 240L Prestige

 

More photos: http://imgur.com/a/H7WnB#0

 

 

[crashdown287]

Based on your pictures the rad fans should be pull so they exhaust out the top

[crashdown287]

If you have extra fans you can mount them so you have a push+pull on the radiator but imo the slight performance boost isn't worth the extra noise and you may run into clearance issues with your mobo

[Noose]

If you have extra fans you can mount them so you have a push+pull on the radiator but imo the slight performance boost isn't worth the extra noise and you may run into clearance issues with your mobo

 

Thanks for your reply! Yeah rad barely fits as it is. Thanks for the tip on the rad. 

[LogicalDrm]

If there's spot for another intake on front, you should place fan to it. Maybe use one that is as exhaust right now. Atm you have negative air pressure which means more exhaust than intake. And that sucks more dust in than pushes it out.

[Noose]

 

This is how it looks right now. I put in another intake infront an bottom. 

Tried to set the rad fans to push air out but that resulted in worse temps for the cpu.