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This is a ordinary Cosmos II build with custom paint job. The interior layout is exactly the way CoolerMaster anticipated.
This is a great build in Silverstone TJ11 with custom paint job and custom liquid cooling loop. It clear shows the interior structure from Silversone.
It is a huge case.
Top, mid and rear panels stripped down.
Mid Panel cut from a scrap material
Cut vent and screw holes for 4x120mm fans and radiator using template from MNPCtech
Rear I/O cutout on top panel.
Using angle aluminum and cut to fit stock fastening method.
Test fitting of mid and top panels, stock top panel added for comparison.
Space on mid plate left for front intake fan.
Motherboard tray test fitting.
Stock rear fan mount interfering with flipped motherboard try.
Cable routing hole, mirrored from stock top panel.
Marking screw holes for HDD cage from lower compartment of the case.
All panels came back from powder coating.
I should have drilled holes before cutting this radiator cutout to eliminate imperfection cuts.
The piece in the middle is stock finish, and two other piece from powder coating match nicely.
The piece in the middle is stock finish, and two other piece from powder coating match nicely.
Case fully assembled.
Different angle
Now all the input and output will be on top.
Back of the motherboard try with door open.
This would be the "business" side.
Main components installed.
Looking through PCI slots at Cougar Vortex fans. Wish they were red instead orange.
Fan cable routing holes. A custom panel yet need to be made to cover original back side of the case.
Ordered black Cougar Vortex fans to match the color scheme on motherboard. I may just remove the orange rubber pads to eliminate unwanted color confusion.
Cables yet to be cleaned up.
Top cover off.
Top cover on.
Love looking through PCI slots down so much.
Custom made Teflon coated silver plated wire, showing 24 pin connector.
Custom made Teflon coated silver plated wire, showing 18+10 pin connectors to 24 pin cable
Custom made Teflon coated silver plated wire, showing PSU 12 pin to PCI-E 8+6 pin cable.
Custom made Teflon coated silver plated wire, showing PSU 8 pin to CPU 8 pin.
Custom made Teflon coated silver plated wire, showing PSU 8 pin to CPU 8 pin. The other connector.
Finished cables in action.
Close shot.
Custom short loop run cables on PSU side.
Please ignore the dust.
There is still work to do, for example cut a custom window to better show off the fantastic interior. And custom liquid cooling loop when I have the funds to do so.
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Cooler Master Possessed by Silverstone | Cosmos II and TJ-11 Hybrid Mod

I always like the FT, RV and TJ series computer case from Silverstone, especially after Silverstone started implementing 90 degree rotated motherboard tray design for better heat dissipation. On the other hand, I like the stylish design of Cosmos II from CoolerMaster. Since the first day Cosmos II was released, I have been planning to modify the case in a way so it can have both CoolerMaster's stylish design and Silverstone's innovative internal structure; that was how this personal project was born.

Yang Ji
Industrial Designer Los Angeles, CA