Concept Gaming Computer in a Trash Can Mac Pro | How to power GPU

nmogv2

Efficiency Noob
Original poster
May 23, 2018
7
3
Maybe a controversial take, but I absolutely LOVE the design of the Mac Pro 6,1 (Trash Can), and I have wanted to build a computer in one for the longest time. And, I have finally created some mock ups of what that would require. Here are a couple of notes that go with the images:


The motherboard is an AsRock x600, as a standard itx board will not fit, and the x600 allows me to still use some pretty powerful CPUs like the 7600x3d.
The Max gpu length appears to be about 180mm, which allows for a 4060ti at best, which is fine. I play at 1440p 90 hz, mostly esports titles and some AAA games that I dont mind turning down the graphics for.
And a 140mm fan does fit up top (ignore the fan direction in the cad models, it would be blowing up in the final installation) with a little chopping up.

The final issue is that I would use an m.2 to pcie adapter for the GPU, which is fine. But powering the GPU is a little beyond me right now. The motherboard for the x600 has its own input from a barrel plug, meaning there is no ATX standard to plug the GPU into. After some digging, I can use an HDplex 200w DC-ATX power supply, and there are 24 pin jumper pins with on off switches to control when the gpu is on and off like this: https://www.amazon.com/gp/product/B09XTYKHV5?smid=A2D341MUOIEROL&psc=1

But HDplex doesnt have any, and other options dont seem to have any pcie output cables.

The final piece of the puzzle is that this GPU power supply needs to fit at the bottom of the case, which has a radius of 110mm, so the longer versions of the HDplex options are not viable.

Im looking for support on this one, anything is helpful!
 
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Gidilo

Trash Compacter
Nov 23, 2022
48
18
Pretty much everything you need to know:
 

nmogv2

Efficiency Noob
Original poster
May 23, 2018
7
3
Pretty much everything you need to know:
Thank you so much, this is perfect!
 

nmogv2

Efficiency Noob
Original poster
May 23, 2018
7
3
Just a personal note for anyone reading, I am following through with this, so I'll update it here when I complete it with everything I learned :)
 
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Smole

Chassis Packer
Apr 29, 2022
17
3
I love cylinder PCs and especially the Trashcan Mac (though only its looks and crazy internal engineering, i wouldn't ever use the actual thing lol).
So i find this project particularily exciting!

Are you going to be reusing parts from an actual Mac (external case and base, modified IO shield etc) or are you going to manufacture a new case replicating the dimentions of the og trashcan mac?

Looking forward to seeing progress on this ! :)
 

nmogv2

Efficiency Noob
Original poster
May 23, 2018
7
3
I love cylinder PCs and especially the Trashcan Mac (though only its looks and crazy internal engineering, i wouldn't ever use the actual thing lol).
So i find this project particularily exciting!

Are you going to be reusing parts from an actual Mac (external case and base, modified IO shield etc) or are you going to manufacture a new case replicating the dimentions of the og trashcan mac?

Looking forward to seeing progress on this ! :)
I actually messed around with a 10% and 20% scaled version of the original case that would need to be 3d printed. Those solved the issue of having to use the ASRock deskmini motherboard. I think the 10% would just barely fit the m-itx motherboard, and the 20% could even fit an sfx power supply too. But the 20% is ~10L vs the original Mac Pro being ~5L, plus the magic was gone for me.

If you're interested, I can send you the f3d and/or the mesh file to print it. Its actually able to be printed from craft cloud with PETG for ~$100, you would just have to make internal structures to mount the materials.

Edit: (Forgot to answer your other question). I am reusing the case top and bottom, and that's about it. I wanted to also reuse the fan, but adapting it to 3/4 pin was beyond me, the daughter board is a little confusing since it also houses the wifi card.

Here's a reference picture:
 
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ramlebq

Case Bender
New User
Feb 13, 2025
2
0
My only concern is the fan orientation. Heat moves upwards by convection and the fan moves air in the opposite direction.
 

Gidilo

Trash Compacter
Nov 23, 2022
48
18
My only concern is the fan orientation. Heat moves upwards by convection and the fan moves air in the opposite direction.
my guess is that this was only an oversight in CAD and not on purpose. But you're right, I would flip it to blow upwards
 

robbee

King of Cable Management
n3rdware
Bronze Supporter
Sep 24, 2016
887
1,395
My only concern is the fan orientation. Heat moves upwards by convection and the fan moves air in the opposite direction.

Reversing indeed makes more sense to get the hot air out of your case, but convection is negligible once there is some airflow inside your case.
 


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