Rx 6400 eGPU +Copper Mod ( in Progress)

[FlexxRocket]

I want to Mod my Rx6400 the Same like Revoccases did , but with a Cooper heatsink and 2 Noctua A6x25 Fans from N3rdware.
All this i will put In a 3d Printed Box
My First Try with Fusion 360 Looks like this :
The GPU is in the TH3P4 lite

and as eGPU connected with my Laptop via Thunderbolt.
This week i will Start with the copper Mod and will update this Thread After every step

 

[FlexxRocket]

The Plate Just arrived .
Next i will Drill slightly bigger holes (2.00 to 2.10 mm )
And then cut 4 Threads with a M2.5 thread cutter

 

[FlexxRocket]

cutting the threads After Drilling 2.10 mm holes

 

[FlexxRocket]

Removing the thermal paste and pads .
And putting 0.5 mm thermal Pads on the VRam
Is the Thermal Paste around the Chip dangerous? Because in the Post:

"KalmX AMD Edition" - RADEON RX 6400 Passive Cooling Mod

someone on Reddit asked me if I could do something similar like my RTX A2000 Passive Cooling Mod but for AMD... now what could be better suited for a fanless AMD GPU than the very efficient RX6400, delivering GTX 1650 performance at a TBP of just 53W... that said, I can't quite understand why no...

smallformfactor.net

Its also around the chip

 

[FlexxRocket]

The Result for now

 

[FlexxRocket]

First i taped the two parts together with heat resistand tape ( Not recommended)
This is How it looks After soldering the two parts together

 

[FlexxRocket]

Its dirty from the heat resistand tape.
I wasnt able to remove it with isopropanol
So it has to Stay

 

[REVOCCASES]

I wasnt able to remove it with isopropanol

you still could try Acetone

 

[FlexxRocket]

Acetone wasnt that successfull , but my fans arrived from n3rdware.
Next step will be printing the box and connecting everything together.

 

[FlexxRocket]

I put the thermal paste on the RAM and on the chip

 

[REVOCCASES]

I put the thermal paste on the RAM and on the chip

I'd not spread it and use some more than usual, IIRC there was a tiny gap between GPU die and VRAM... maybe 0.2mm

 

[FlexxRocket]

Ready

 

[FlexxRocket]

sadly the fans are always at 0RPM even at over 70 degrees celcius.is there a software where i can control the speed?

 

[FlexxRocket]

I used this Adapter:

https://amzn.eu/d/cKtXkZa

With the 2 Noctua Fans from n3rdware

 

[FlexxRocket]

with a smaller Notua Fan it works
But that is no real Solution Because i Need at least a Fan with a diameter of 6cm
The 4cm from Noctua are way too small

 

[REVOCCASES]

I used this Adapter:

https://amzn.eu/d/cKtXkZa

With the 2 Noctua Fans from n3rdware

strange... the adapter should be fine and I think the card should also be able to handle the Noctua fans (2x 0.08A Noctua vs. 1x 0.19A with the original fan)

are the Noctua fans working if you connect them to a normal motherboard fan header?

 

[FlexxRocket]

I connected them also to this Fan Controller : https://amzn.eu/d/34GRIiK
And they werent moving. So i think the Fans from n3rdware are defect

 

[FlexxRocket]

Maybe the cables are Broken Because of the very tight packaging in which they were delivered.

 

[FlexxRocket]

The a4x10 is moving the others not

 

[REVOCCASES]

I connected them also to this Fan Controller : https://amzn.eu/d/34GRIiK
And they werent moving. So i think the Fans from n3rdware are defect

maybe @robbee can help here?