Help with airflow (Meshify S2)

[Locklin]

Was wondering if someone knows the best way to mount fans for airflow inside a Fractal Design Meshify S2 case. I will be using a 240mm AIO and the case comes with 3x 140mm fans. I've attached an image below of the fan mounting capabilities. I am willing to purchase more fans as well for optimal cooling were possible.

 

Here are my components:

 

CPU: i7 8700k

CPU Cooler: Corsair h100i rgb platinum 240mm

GPU: Gigabyte 2080ti GAMING OC (Open air cooling)

Motherboard: MSI Z370-A PRO

Storage: 1x Samsung 500gb SSD - 1x Toshiba 3tb HDD - 1x WD Blue 1tb HDD

PSU: EVGA Supernova 750W Gold

 

Thanks for any help

[Robchil]

well..  i have the FD R6. and are running a watercooling loop on it, with these radiators one 240mm in the front, 140mm bottom 360mm in the top and a 120mm in the back. 

altho i have an RTX2080ti SLI setup and 9900K now i started with a 8700k.. 

It depends on what you want to do, try to contain equal static preasure in the rig, 

so if you put two 120's in the front, put two 120's in the back..  here that means one in the back and one in the top. if you can manage with Y cables, connect the two back fans to the AIO, then it is easier to keep a steady flow of air through the system and it should enable you to run the fans at lower speeds.. 700-1200 rps. try to use the same brand fans all around. but as long as they are the same rpm it should be ok. 

[Stahlmann]

I'd go for 3x 120mm front as intake, 1x 120mm back as exhaust, and 1x 120mm top back as exhaust. Run all at the same speed for slightly positive pressure and less dust. I'd not suggest to fill up the 2 top fan Mounts to the front because they will suck out cold air before it gets to cool anything. I'd put the 240mm radiatior behind the top 2 front fans.

[Hairless Monkey Boy]

With what you have on hand, I would do the 240 Rad exhausting out the top rear. 1x 140mm in the back, 2x 140mm in the front. That should provide the closest to balanced airflow. You might set the rear exhaust fan to spin a little slower than the front ones to ensure slight positive pressure.

 

I love my setup because I have 3X 140mm blowing through rads in, and 3X 140mm blowing through Rads out. ~balance~. Blew smoke through it once and it was a beautiful sight.

[Locklin]

36 minutes ago, Stahlmann98 said:

I'd go for 3x 120mm front as intake, 1x 120mm back as exhaust, and 1x 120mm top back as exhaust. Run all at the same speed for slightly positive pressure and less dust. I'd not suggest to fill up the 2 top fan Mounts to the front because they will suck out cold air before it gets to cool anything. I'd put the 250mm radiatior behind the top 2 front fans.

Only trouble with this is that the 2 fans on the radiator aren't individually controllable they just sync up with the temperature of the cpu. If i were to buy 3 more as you suggested how would i get them all to run at the same speed? 

[Stahlmann]

1 minute ago, Locklin said:

Only trouble with this is that the 2 fans on the radiator aren't individually controllable they just sync up with the temperature of the cpu. If i were to buy 3 more as you suggested how would i get them all to run at the same speed? 

Run the radiator fans at "fixed percentage", look for the RPM and then match the RPM with fixed speed in your BIOS for the other fans plugged into your mobo.

[Locklin]

28 minutes ago, HairlessMonkeyBoy said:

With what you have on hand, I would do the 240 Rad exhausting out the top rear. 1x 140mm in the back, 2x 140mm in the front. That should provide the closest to balanced airflow. You might set the rear exhaust fan to spin a little slower than the front ones to ensure slight positive pressure.

 

I love my setup because I have 3X 140mm blowing through rads in, and 3X 140mm blowing through Rads out. ~balance~. Blew smoke through it once and it was a beautiful sight.

That sounds great  However I think I would probably be needing to replace the 3x 140mm fans that come with the case anyway because they are all 1700rpm, where as my 2 AIO fans are 120mm 2400rpm. I was thinking of just buying more 120mm 2400 rpm fans instead?

[Locklin]

49 minutes ago, Robchil said:

well..  i have the FD R6. and are running a watercooling loop on it, with these radiators one 240mm in the front, 140mm bottom 360mm in the top and a 120mm in the back. 

altho i have an RTX2080ti SLI setup and 9900K now i started with a 8700k.. 

It depends on what you want to do, try to contain equal static preasure in the rig, 

so if you put two 120's in the front, put two 120's in the back..  here that means one in the back and one in the top. if you can manage with Y cables, connect the two back fans to the AIO, then it is easier to keep a steady flow of air through the system and it should enable you to run the fans at lower speeds.. 700-1200 rps. try to use the same brand fans all around. but as long as they are the same rpm it should be ok. 

Thanks for your reply, I never really considered equal static pressure in this old case because i have 2x 120mm 2400rpm fans as the front intake through the AIO then 2x 140mm 1700rpm at the back and top rear and its been a nightmare for cooling.

 

I'm thinking of buying 3 more 120mm 2400rpm fans for the this new case making for 5 in total ( 3 as intake and 2 at back) with the AIO mounted at the top front.

[Hairless Monkey Boy]

2 minutes ago, Locklin said:

That sounds great  However I think I would probably be needing to replace the 3x 140mm fans that come with the case anyway because they are all 1700rpm, where as my 2 AIO fans are 120mm 2400rpm. I was thinking of just buying more 120mm 2400 rpm fans instead?

The Fractal fans are quite good imo, and the max RPM isn't that important unless you intend to run them maxed out. I tend to keep my fan at a max of around 1000RPM for reduced noise.

 

If you do end up getting more fans, the configuration that @Stahlmann98 suggested would do well. But again, the RPM is not the only factor. A lower RPM airflow optimized fan (A case fan) can push as much or more air vs a high RPM pressure optimized fan (a radiator fan).

[Locklin]

7 minutes ago, Stahlmann98 said:

Run the radiator fans at "fixed percentage", look for the RPM and then match the RPM with fixed speed in your BIOS for the other fans plugged into your mobo.

Oh right I see. So i'll just have the fans running at the same speed at all times? I'm used to using fan curves so im guessing that wont be possible with this new setup?

 

Thanks for all your help 

[Locklin]

4 minutes ago, HairlessMonkeyBoy said:

The Fractal fans are quite good imo, and the max RPM isn't that important unless you intend to run them maxed out. I tend to keep my fan at a max of around 1000RPM for reduced noise.

 

If you do end up getting more fans, the configuration that @Stahlmann98 suggested would do well. But again, the RPM is not the only factor. A lower RPM airflow optimized fan (A case fan) can push as much or more air vs a high RPM pressure optimized fan (a radiator fan).

https://www.corsair.com/uk/en/Categories/Products/Fans/Magnetic-Levitation-Fans/ml-pro-config/p/CO-9050040-WW#tab-overview

 

These are the 2 fans that are connected to my radiator and the ones I planned on buying 3 more of. Does this mean that because they are 'radiator fans' they must be used with a radiator. Or do they double as case fans as well and if so would it be better than using the fractal case fans? 

 

Appreciate your help  

[Hairless Monkey Boy]

2 minutes ago, Locklin said:

https://www.corsair.com/uk/en/Categories/Products/Fans/Magnetic-Levitation-Fans/ml-pro-config/p/CO-9050040-WW#tab-overview

 

These are the 2 fans that are connected to my radiator and the ones I planned on buying 3 more of. Does this mean that because they are 'radiator fans' they must be used with a radiator. Or do they double as case fans as well and if so would it be better than using the fractal case fans? 

 

Appreciate your help  

Those fans claim to have a balanced design between airflow and pressure, same as the fans that come with your case actually, so they will be suitable for both purposes.