Prototype CK-03, my custom case for Airflow and Acoustics

Crackong

Chassis Packer
Original poster
Aug 4, 2018
16
22
(29/12/2018) - upgraded to glass windows

Hello all,

This is my first project for making a case for myself.
I am building this from the ground.
Suggestions and Criticisms are appreciated.

Link -> Previous Thread for Prototype No.1 and No.2

This, the CK-03, is the first fully functioned prototype.

A recap for the initial Requirements :

1. Fits into the space under my desk, around 300 mm x 280 mm x 300 mm ( L x W x H )
2. M - itx form factor.
3. Allows CPU cooler up to 160 mm tall ( No water cooling )
4. Supports ATX PSU.
5. Fits 300 mm long, 2.5 slots GPU.
6. As many fans as possible.
7. Airflow in ONE direction.
8. Dust filter support is a MUST.
9. Solid top panel to prevent dust from falling in.
10. Transparent side panels.
11(new). This is my bed side gaming PC, needs to be powerful and quiet, also No RGB.


The Approach :

It is simple.
More fans, less rpm, makes a quiet yet powerful PC.


The CK-03 (Prototype No.3) :


The case is full aluminium.
It was designed with free CAD software, then export to an online maker for laser cutting.
Then assembled with conventional "L" shape braces + silverstone front I/O kit + some soldering work.


Overview



The case is basically a cube.
It sized around 310 x 280 x 300 (L x W x H) , internal volume ~ 19 L.
Big gaps on top and bottom allows maximum airflow.

Top / Front Panel


The top / front panel is a single piece design.


Front I/O


The front I/O is a Silverstone I/O kit retrofitted, adds USB 3.0 , audio jacks and Type-C (Gen2) Support.
Power button is hand-soldered.
All front I/O components are mounted onto a removable panel.


Top


All top panels are removable:
- GPU exhaust fan panel (Top one with 3 x 60 mm fans).
- CPU top exhaust fan panel (Left one with 120 mm fan).
- Drive Bay (Bottom right one with screws align like a "V" shape)


Top panels removed


Remove all top panels exposes the interior of the case.
The PSU mount (at the bottom) supports ATX PSU however not removable.


Rear Panels removed


Rear panels are removable:
- The GPU bracket (bottom left) supports 3-slots card, also act as a rear panel.
- The rear panel (bottom right) houses the MB I/O shield, rear 120 mm exhaust fan and the power extension cord.


Fan mounting plate


This removable mounting plate supports 4 x 120 mm intake fans.


Finished Disassembly


The side windows are sandwiched between the side panels and are removable.
However the actual "side panels" are structural components and non-removable, therefore not showing in picture.

System Spec

CPU: Ryzen 1800x 4.0GHz
MB : ASUS x370-i
RAM: 16GB G.Skill 3600MHz CL16
GPU: Inno3D RTX 2080 X2 OC
M.2 : Samsung SM961 256 GB + Samsung PM961 256 GB
SATA: Crucial MX500 500 GB + Seagate 2TB HDD
PSU: EVGA 750 G3


Some Pics








Open the Case


The top / front panel is held by velcro and can be easily opened for adjusting fan speed.
There is a 250 x 250 magnetic dust filter on the top.


The Front



The PSU is exposed and easily accessible.
The front part has some cable management area, and the place for the fan controller (Noctua FC-1).
It controls all 4 intake fans at the bottom.


The Top


Removing the dust filter reveals the top removable panels:
- CPU top exhaust fan (Top left) (Noctua NF- S12A)
- Drive Bay (Middle left)
- GPU exhaust fan (Right) (3x Noctua A6 x25)
- The PSU mount (bottom) is non-removable.


The Bottom



There is a second 250 x 250 magnetic dust filter at the bottom.
Remove the dust filter reveals 4 intake fans ( 4x Noctua NF-F12)



The Main Compartment


The main compartment hosts:
- The Motherboard (Left)
- 2.5" Drives (Middle)
- PSU (Right)

Two of the NF-F12 intake fans blow fresh air directly into these components.


Motherboard Area


The Motherboard hosts 2x M.2 drives, one for system and one for the steam library.
2x 8GB Gskill 3600MHz RAM are installed.
A Thermaltake PCI-E extension cable connects to the GPU in the separate compartment.


CPU Heatsink


There is a 1800x @4.0GHz under the Noctua U12S cooler
Fresh air comes in from the bottom, through the CPU cooler , then exits via top and rear exhaust fans (NF-S12A)
This cooler is 158 mm in height.
The case allows maximum of 165 mm.


Drive Bay


The design allows 4 x 2.5" drive to be installed.
However upon installation, the last drive cage was removed for more cable management room.
There are 2x 2.5" Drive installed : 500GB SSD for some fast storage, and a 2TB HDD for pure storage.


GPU Compartment



The GPU compartment hosts the RTX 2080.
The GPU gets its own compartment for best airflow.
Allows maximum card length of 300 mm.
2x NF-F12 fans blow fresh air directly on the GPU, then 3x A6 fans pump the hot air out, creates an air tunnel.
This air tunnel works best with GPUs heatsink with vertical fins.


That's all :)




Conclusion and Future Development:


I am Happy :)
My bed side PC is now quiet.
The huge airflow keeps the CPU and GPU fans stay low in gaming, or almost inaudible idle.

However,
More room is needed for cable management.
Also the case is seriously overbuilt, thus overweight (~8kg).
Future development (Prototype No.4) will focus on these improvements, and better front and top panel designs.


Thanks for Watching !!
Suggestions and Criticisms are appreciated, Thank you.
 
Last edited:

Thehack

Spatial Philosopher
Creator
Bronze Supporter
Mar 6, 2016
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J-hackcompany.com
Very cool build. A bit big, but you utilize most of the space for maximum silence.

I would say, the 40mm fans aren't necessary, since there is so much positive airflow that the air will move in that direction anyways. I would also experiment with using only one fan for the CPU cooler as well. Sometimes you get mis-matched airflow impedance which causes more noise instead.
 

Crackong

Chassis Packer
Original poster
Aug 4, 2018
16
22
Very cool build. A bit big, but you utilize most of the space for maximum silence.

I would say, the 40mm fans aren't necessary, since there is so much positive airflow that the air will move in that direction anyways. I would also experiment with using only one fan for the CPU cooler as well. Sometimes you get mis-matched airflow impedance which causes more noise instead.
Thanks for the suggestion.
Yes that is my next step : testing with and without fans to get the best configuration, then build the next prototype around it.
 

Crackong

Chassis Packer
Original poster
Aug 4, 2018
16
22
Just a Minor update for the side windows :

The windows were acrylic, now replaced with regular window glass (not tempered)