MP 1,1-5,1 Custom PCI fan mount for longer GPUs (any 6900 XT)

[thirdhonk]

In case anyone is interested I have designed a custom 5,1 PCI fan mount today so just about any GPU will fit, I've been looking at upgrading my 5700 XT (pictured here) to a 6900 XT thanks to the lovely patch made by Syncretic.

My 5700 XT is 306 mm long for reference, GPU's up to at least 350 mm should fit. The mount is slim so it will sit behind the GPU if it's longer.

If there is interest I can upload the mount, it would be free to download and under a non-commercial license, you just need to 3D print it. If you don't have a 3D printer maybe a friend can help you out.

Then just unscrew the stock PCI fan mount, remove the fan (can be fiddly, take your time) and move it over, the connector slides in place and is secure. The mount uses heated M3 inserts but you can use M3 or M4 screws and nuts to secure it as well.

I recommend printing it in heat resistant or even better, flame retardent filament. I've used Prusament PC-CF myself.

Pictures:

Download here:

Mac Pro 5,1 Improved PCI Fan Holder by humebeam | Download free STL model | Printables.com

This is an improved PCI fan holder for the Mac Pro 5,1, allowing for longer GPUs such as Radeon RX 6800 XT and 6900 XT. | Download free 3D printable STL models

www.printables.com

Buy a prebuilt mount

If you're looking for a prebuilt mount with included screws, here are a few authorized resellers worldwide *:

• Motor City 3D Print (United States)
• Elektrifiziert (Germany - link coming soon!)
• NextGen 3D Printing (Australia - link coming soon!)

* 4€ for each sold unit is donated to the designer to help development with this and other designs.

 

[Stex]

great work!

please do upload the file, many will use it! thanks for sharing!

 

[thirdhonk]

Thanks I will probably upload tonight or tomorrow at the latest.

 

[thirdhonk]

Some better pics, I made a reprint so I could make some instructions.

I will try to get it online by tomorrow morning the latest so you can 3D print one yourself.

 

[thirdhonk]

I've uploaded the files and the assembly guide now:

Mac Pro 5,1 Improved PCI Fan Holder by humebeam | Download free STL model | Printables.com

This is an improved PCI fan holder for the Mac Pro 5,1, allowing for longer GPUs such as Radeon RX 6800 XT and 6900 XT. | Download free 3D printable STL models

www.printables.com

Cheers, Hume.

 

[h9826790]

For info, this post is now included in the sticky cMP upgrade thread -> GPU upgrade section.

 

[thirdhonk]

For info, this post is now included in the sticky cMP upgrade thread -> GPU upgrade section.

Great.

I have a few guys around the world (EU, AU and US) who distribute some of my other designs under a "commercial" agreement with me, I will check and see if they are willing to distribute this part too. If so I can link to their shops. That would mean people can buy the part printed with heated M3 inserts in place and included screws at a low price.

 

[thirdhonk]

Buy a prebuilt mount

If you're looking for a prebuilt mount with included screws, here are a few authorized resellers worldwide *:

• Motor City 3D Print (United States)
• Elektrifiziert (Germany - link coming soon!)
• NextGen 3D Printing (Australia - link coming soon!)

* 4€ for each sold unit is donated to the designer to help development with this and other designs.

 

[mattspace]

Loving seeing things like this - these machines are going to end up being the electro-modded classic cars of the computing world eventually.

 

[thirdhonk]

Here is my 320 mm Powercolor 6900 XT Red Devil Ultimate installed using this PCI fan mod. Plenty of space left. I used a dual mini 6-pin PCI-express cable to 8-pin PCI for the leftmost connector, normal Pixlas mod cables for the other two. This card uses 3 x 8-pin.

 

[avro707]

It's crazy how big these cards are getting, and crazy how inventive people here are getting!