Optimal Airflow in new R5 case?

[GamerGuy89]

I haven't done any computer builds since Ivy Bridge. I'm looking for some advice on optimal airflow in the Fractal Design R5 (windowed) case.

I'll be using the H100i v2 in push/pull with 4x SP120 high pressure fans for a 6700k.

I'd love a semi-quiet and dust free build if that's possible..This is what I'm thinking:
http://imgur.com/a/sAgWX

Don't mind my complete lack of any sort of artistic skills. Thanks for any input.

 

[Komshija]

You'll need two powerful 14cm fans in the front and good 12cm fan at the rear for that configuration. Candidates: Arctic F14 PWM or Akasa Viper 14 cm (front intake) and Arctic F12 PWM or Akasa Viper 12cm (rear exhaust).

There's no such thing as dust-free build.

I suggest a good air cooling with Be Quiet Shadow Rock Slim, Cryorig H5 Universal or Thermalright True Spirit 140 Power. They can handle i7 6700K easily and will be quieter than water cooling. Note that Be Quiet Shadow Rock Slim is very quiet.

 

[GamerGuy89]

You'll need two powerful 14cm fans in the front and good 12cm fan at the rear for that configuration. Candidates: Arctic F14 PWM or Akasa Viper 14 cm (front intake) and Arctic F12 PWM or Akasa Viper 12cm (rear exhaust).

There's no such thing as dust-free build.

I suggest a good air cooling with Be Quiet Shadow Rock Slim, Cryorig H5 Universal or Thermalright True Spirit 140 Power. They can handle i7 6700K easily and will be quieter than water cooling. Note that Be Quiet Shadow Rock Slim is very quiet.

I will look into those fans. I'm rocking the stock 140mm and 120mm fans as of right now, but will be replacing them next week more than likely. I'm also hoping to jump on a fan controller at the same time. And I mentioned a dust-free build because I thought it would be somewhat possible depending on the case pressure etc. I'm still learning though so thanks for clarifying that.

 

[rtwjunkie]

On my R4 I have two 140 mm Cougar fans in the front, and one in the bottom (Cougar CF-V14HB Vortex). Pretty quiet, and have the air volume I require versus exhaust to be a slightly positive pressure case. At the rear I have a 140 Fractal higher speed fan (Fractal Design Venturi HF Series Black Fluid Dynamic Bearing High Airflow) which is still surprisingly quiet.

 

[GamerGuy89]

On my R4 I have two 140 mm Cougar fans in the front, and one in the bottom (Cougar CF-V14HB Vortex). Pretty quiet, and have the air volume I require versus exhaust to be a slightly positive pressure case. At the rear I have a 140 Fractal higher speed fan (Fractal Design Venturi HF Series Black Fluid Dynamic Bearing High Airflow) which is still surprisingly quiet.

Windowed case? How does the fan on the bottom look? I thought about adding one next to my PSU but was thinking it would be an eyesore. I suppose it would greatly help my GPU though.

 

[rtwjunkie]

Windowed case? How does the fan on the bottom look? I thought about adding one next to my PSU but was thinking it would be an eyesore. I suppose it would greatly help my GPU though.

I actually switched last week to a lighted lighted one (Cougar) with nearly the same CFM in the bottom. White looks really good and isn't overpowering.

The black and orange of the other wasn't really too noticeable in a fairly dark case unless you shined a light in there.

 

[GamerGuy89]

I actually switched last week to a lighted lighted one (Cougar) with nearly the same CFM in the bottom. White looks really good and isn't overpowering.

The black and orange of the other wasn't really too noticeable in a fairly dark case unless you shined a light in there.

Now what exactly does the positive pressure mean? I like the looks, specs, and reviews on the Fractal Design Venturi HF Series Black Fluid Dynamic Bearing High Airflow. Do you think that would be a good fan for the dual front intake on the R5 as well as the exhaust?

 

[P4-630]

Now what exactly does the positive pressure mean?

"Positive air pressure simply means that more intake air is forced into the chassis than air is being exhausted. This might sound contradictory at first, but if you think through it, it will make sense.

It goes something like this: If there is more air entering the chassis than exiting, you have a positive air pressure environment. This happens when your fans are intaking more air than being exhausted. This surplus of air will push air out of the case through the many cracks inside a chassis. This positive air pressure essentially prevents dust buildup where there are no fans. I’m sure everyone has experienced dust buildup in places such as the CD/DVD bays or the PCI slot area. These areas and others are notorious for dust build up where fans are not used.

However, if you have more air being exhausted than taken in, you have a negative air pressure environment. This happens when your fans are exhausting more air than being taken in. What occurs here is dirty, unfiltered air is being drawn through the cracks within an enclosure. This condition creates dust buildup within an enclosure very quickly. The problem is only exacerbated because this unfiltered air cannot be contained or filtered in any way."

http://www.overclock.net/t/1219634/...-need-to-know-to-keep-your-pc-clean-and-happy

 

[GamerGuy89]

"Positive air pressure simply means that more intake air is forced into the chassis than air is being exhausted. This might sound contradictory at first, but if you think through it, it will make sense.

It goes something like this: If there is more air entering the chassis than exiting, you have a positive air pressure environment. This happens when your fans are intaking more air than being exhausted. This surplus of air will push air out of the case through the many cracks inside a chassis. This positive air pressure essentially prevents dust buildup where there are no fans. I’m sure everyone has experienced dust buildup in places such as the CD/DVD bays or the PCI slot area. These areas and others are notorious for dust build up where fans are not used.

However, if you have more air being exhausted than taken in, you have a negative air pressure environment. This happens when your fans are exhausting more air than being taken in. What occurs here is dirty, unfiltered air is being drawn through the cracks within an enclosure. This condition creates dust buildup within an enclosure very quickly. The problem is only exacerbated because this unfiltered air cannot be contained or filtered in any way."

http://www.overclock.net/t/1219634/...-need-to-know-to-keep-your-pc-clean-and-happy

Thank you for that explanation. My noob logic was that I should have more air exhausting to possible push the air/dust out of the case.

 

[rtwjunkie]

Now what exactly does the positive pressure mean? I like the looks, specs, and reviews on the Fractal Design Venturi HF Series Black Fluid Dynamic Bearing High Airflow. Do you think that would be a good fan for the dual front intake on the R5 as well as the exhaust?

Thanks @P4-630 for getting that explanation to him!

Yeah, the Venturi is a great fan. so great, you might only want one exhaust using the Venturi, because it is such a high CFM.

Or, just use 2 R2's (the one that come with case) as exhaust, because I believe IIRC only in the 40's for CFM, and use the Venturi as an Intake. If you have multiple Venturi's, it will be loud, negating the quiet case advantage of the R5, and will also turn your case into a roaring wind tunnel, which is not necessary to cool.

 

[GamerGuy89]

Thanks @P4-630 for getting that explanation to him!

Yeah, the Venturi is a great fan. so great, you might only want one exhaust using the Venturi, because it is such a high CFM.

Or, just use 2 R2's (the one that come with case) as exhaust, because I believe IIRC only in the 40's for CFM, and use the Venturi as an Intake. If you have multiple Venturi's, it will be loud, negating the quiet case advantage of the R5, and will also turn your case into a roaring wind tunnel, which is not necessary to cool.

I don't mind a bit of noise from my case. My previous build was in a HAF X and sounded like a jet engine. Back then, I didn't care about noise or anything. With the R5 sound dampening etc, I figured it would still be much quieter than my previous build. Also, I only have 1 exhaust slot open for a new fan. The top is my h100i v2 in P/P as exhaust with 4x SP120 fans.