Fan placement custom case

[Cmrage]

Hey guys i am building a coffin case and need some suggestions on fan placement anything helps.

Thank you

 

[the nerd 389]

Place the exhaust(s) as close to the major heat sources as you can. The faster the heat is removed, the better off you are. Place the intake directly next to the most heat sensitive components (i.e. SSDs/HDDs).

I noticed that the GPU doesn't vent out the back. That could be an issue in a case like this. You could benefit from ducting the exhaust to an opening, and installing a fan in that duct.

You don't have the option of using convective forces to aid airflow, so all air movement must be powered. This does assume that the top of the case will be sealed, or nearly sealed.

What components are they, and are you overclocking?

 

[Cmrage]

Place the exhaust(s) as close to the major heat sources as you can. The faster the heat is removed, the better off you are. Place the intake directly next to the most heat sensitive components (i.e. SSDs/HDDs).

I noticed that the GPU doesn't vent out the back. That could be an issue in a case like this. You could benefit from ducting the exhaust to an opening, and installing a fan in that duct.

You don't have the option of using convective forces to aid airflow, so all air movement must be powered. This does assume that the top of the case will be sealed, or nearly sealed.

What components are they, and are you overclocking?

may do some minor overclocking, it will be sealed case. I have GTX1070 by MSI, intel I5-6500. Also I am looking into the Be Quiet Black Rock Pro3. I have three fans so far all 120.

 

[the nerd 389]

You will want an exhaust right above the rear panel of the MB. You'll also want an intake by the SSD, between the SSD and PSU. You can use the third fan to circulate air internally, so you don't get any hotspots that have no air movement. I would suggest placing it by the SSD, aiming away from the PSU, so that fresh air circulates around to the GPU.

If you get another fan, use it as an intake, and place it near the first intake, on the other side of the internal circulation fan.

 

[greens]

Coffin Case:
GPU should be on an extension, without question, and mounted to the lid of the coffin.
So the GPU should serve as the intake. The fans will be where you might find a cross or the letters RIP - on the top of the lid.

That exhaust will be removed from the "top" of the case with something like a 120mm fan, maybe smaller. Or maybe you could do TWO exhaust fans, one on each angle of the coffin.

In reference to other comments - it does not matter where you place fans in the system.
Imagine a pipe with a pump on it pushing water... does it matter where the pump is? nope! It can be at the beginning, the end, or right in the middle - the amount of water and the overall exposure of the water to the pipe is identical. It is the flow itself that is most important.

 

[greens]

Yall are crazy A fan for your SSD?

You can cram an m.2 SSD under your mobo with no airflow and it won't crest 40c, I mean cmon. They generate crazy little heat.

I have a 6700k and a GTX 1080 and I only have one exhaust fan. People get way too concerned about airflow. Waaay too concerned.

I like the idea of a coffin case. GPU at the head, mobo at the torso, psu at the feet. Otherwise if you leave the GPU attached to the mobo without an extension the dimensions will be way off - it will be too thick.

 

[Cmrage]

Yall are crazy A fan for your SSD?

You can cram an m.2 SSD under your mobo with no airflow and it won't crest 40c, I mean cmon. They generate crazy little heat.

I have a 6700k and a GTX 1080 and I only have one exhaust fan. People get way too concerned about airflow. Waaay too concerned.

I like the idea of a coffin case. GPU at the head, mobo at the torso, psu at the feet. Otherwise if you leave the GPU attached to the mobo without an extension the dimensions will be way off - it will be too thick.

my intent was to leave the gpu attached to the mobo I have the wall side precut to support the gpu as well as the io faceplate.
my thought was to have two fans where the ssd is sitting( the ssd was going to go towards the head and I was going to have an exhaust fan possibly by where the psu is sitting

 

[greens]

Hmm well if we figure the average graphics card is 5" high, then we add probably an inch or 2 for the mobo and at least a little space.
Lets just say 6". A coffin is a bit more than 3.5x taller than it is thick, meaning you're looking at probably 24" coffin. Problem there is that a coffin is usually only 1/3 as wide as it is long, so if its 24" tall it would only be 8" long which is smaller than the ATX standard.

So you'd probably be better off going like, 30" long x 10" wide and 8" thick. She is gonna be a beast if you keep the ratios the same (which you should, its the easiest way to guarantee it looks like a coffin)

 

[Cmrage]

Hmm well if we figure the average graphics card is 5" high, then we add probably an inch or 2 for the mobo and at least a little space.
Lets just say 6". A coffin is a bit more than 3.5x taller than it is thick, meaning you're looking at probably 24" coffin. Problem there is that a coffin is usually only 1/3 as wide as it is long, so if its 24" tall it would only be 8" long which is smaller than the ATX standard.

So you'd probably be better off going like, 30" long x 10" wide and 8" thick. She is gonna be a beast if you keep the ratios the same (which you should, its the easiest way to guarantee it looks like a coffin)

she's a little beefy in the middle but I don't think that it is to far off. I just want to be sure that I am going to be getting good flow in the case and man did I post to the right community.

 

[greens]

that's OK, I'm sure plenty of people had to have extra wide caskets haha
As long as you have a fairly extreme taper at the bottom and a decent one at the top it should look slick.

Don't forget to ground it! Rip the mobo tray out of an old junker and put a wire from it to the PSU case.
If you don't use a metal mobo tray, you really should wire up your standoff points to the PSU's frame. (the easiest way I've seen this done was he used screws to mount the mobo - the screws poked out the back of the wooden panel he mounted them to. He then stripped a wire so it was bare copper, and wound it around each of the screws poking through, and then attached it to his PSU's case. Kind of like those string drawings you do in school)

Link: https://s-media-cache-ak0.pinimg.com/736x/e8/5b/45/e85b45869408f6de44f054e22ab29c7c.jpg
Like that kinda! but you know, for science not for art.

 

[Cmrage]

that's OK, I'm sure plenty of people had to have extra wide caskets haha
As long as you have a fairly extreme taper at the bottom and a decent one at the top it should look slick.

Don't forget to ground it! Rip the mobo tray out of an old junker and put a wire from it to the PSU case.
If you don't use a metal mobo tray, you really should wire up your standoff points to the PSU's frame. (the easiest way I've seen this done was he used screws to mount the mobo - the screws poked out the back of the wooden panel he mounted them to. He then stripped a wire so it was bare copper, and wound it around each of the screws poking through, and then attached it to his PSU's case. Kind of like those string drawings you do in school)

Link: https://s-media-cache-ak0.pinimg.com/736x/e8/5b/45/e85b45869408f6de44f054e22ab29c7c.jpg
Like that kinda! but you know, for science not for art.

that may be an option I have the standoffs mounted into the wood already grounding was another concern, if I wrapped the wires on the standoffs under the mobo as the picture is would that work or is that to close to the mobo that it could potentially cause damage

 

[greens]

that's OK, I'm sure plenty of people had to have extra wide caskets haha
As long as you have a fairly extreme taper at the bottom and a decent one at the top it should look slick.

Don't forget to ground it! Rip the mobo tray out of an old junker and put a wire from it to the PSU case.
If you don't use a metal mobo tray, you really should wire up your standoff points to the PSU's frame. (the easiest way I've seen this done was he used screws to mount the mobo - the screws poked out the back of the wooden panel he mounted them to. He then stripped a wire so it was bare copper, and wound it around each of the screws poking through, and then attached it to his PSU's case. Kind of like those string drawings you do in school)

Link: https://s-media-cache-ak0.pinimg.com/736x/e8/5b/45/e85b45869408f6de44f054e22ab29c7c.jpg
Like that kinda! but you know, for science not for art.

that may be an option I have the standoffs mounted into the wood already grounding was another concern, if I wrapped the wires on the standoffs under the mobo as the picture is would that work or is that to close to the mobo that it could potentially cause damage

Yeah I think that would be fine but may be wise to use a dab of solder to prevent it from shifting. And maybe tape down the wires under the Mobo. Also only strip the wire where you need contact in that case. I think If you take those couple precautions it would be fine.

Then on the end of the wire you put an eyehole so it screws onto the PSU.