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Small fans.

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Do you have this case, or are you still thinking of buying one? Glass in front definitely doesn't help, and small fans on the back are a stupid idea and a waste of money. If you want to use 2+ graphics cards for folding in this case (I'm already lost in your posts), then get one with a perforated front (if you don't have the one on the picture already).
 
If you like the cumulated noise, then why not ...

This case has a 420mm space on the top and bottom. Why would you need 3x40mm fans on the back?
 
Do you want to use it as a gaming PC or a folding one? Do you want to use one graphics card, like RTX4070/Ti or something similar, or two to three cards for folding?
 
Then don't waste money on any fans.
The case has a 420mm bar with 3 fans on the side. Install an AIO cooler on the top, and it's more than enough.

Here is DeepCool Morpheus, which is the same case but without glass in front. This build doesn't need any additional fans to maintain good airflow. I'm using it now for graphics card reviews.

MORPHEUS_pht48.jpg
 
The 4 pin PWM versions of the 40mm x 20mm fan are 12 volt, so they will work if plugged into a motherboard header.

You will need to drill mounting holes into the case to mount them, which I wouldn't want to do to a brand new case. IMHO, seems like a good idea to just leave the area a space to relieve pressure from a positive airflow setup.
 
Then don't waste money on any fans.
The case has a 420mm bar with 3 fans on the side. Install an AIO cooler on the top, and it's more than enough.

Here is DeepCool Morpheus, which is the same case but without glass in front. This build doesn't need any additional fans to maintain good airflow. I'm using it now for graphics card reviews.

View attachment 366701
That looks amazing!!!! :shock:
 
Here is the same in blue:

MORPHEUS_pht47.jpg

It's nothing really special, but I don't have the budget for any custom water loops or other fancy things.
I plugged built-in fans and everything else into the motherboard. Corsair software is required for the AIO. I recommend getting something that will work with motherboard software, so you won't need separate software for every RGB device.

Again, don't buy any fans. Get only an AIO cooler.

DeepCool Morpheus is a good idea if you haven't fully decided on all the components. You can switch it into a single or dual chamber and install the PSU on the bottom, top, or back. In the photos, it is a dual chamber with the PSU on the back. I wanted it in front, but the cable management was painful, and there were not enough holes for all the cables in front.
In general, the frame for the dual-chamber option is the same as in the CH780.
 
I'm going to chime in to agree with much of what has already been said. 40mm fans will be loud and might drive you nuts. If you slow them down so that they are not loud, then the cfm will be low. Perhaps too low to make a difference. Growing up in this industry when we had 80mm fans, ... ... it sucked. They were loud. They had to be loud to push enough air. Then the 120mm fans became a thing and the 140mm also seem to be a good standard now. They can push large amounts of air at lower speeds thus lower noise. The smaller you go, the less effective they are for the area as large as an entire computer case. If you had the fan directly on a heatsink, it'd be a different circumstance.

I agree that putting fans that small into any case would be a waste of money.
 
I'm going to chime in to agree with much of what has already been said. 40mm fans will be loud and might drive you nuts. If you slow them down so that they are not loud, then the cfm will be low. Perhaps too low to make a difference. Growing up in this industry when we had 80mm fans, ... ... it sucked. They were loud. They had to be loud to push enough air. Then the 120mm fans became a thing and the 140mm also seem to be a good standard now. They can push large amounts of air at lower speeds thus lower noise. The smaller you go, the less effective they are for the area as large as an entire computer case. If you had the fan directly on a heatsink, it'd be a different circumstance.

I agree that putting fans that small into any case would be a waste of money.
I guess you are right.
 
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