Have you consider the ambient temperature ?
Upgrade to a copper block.
Yep, it was mentioned in my comment đ
I missed that, my bad.
I combination of this with the 3D print Cooling cage would be nice.
@josephjn.ng Any chance you could sell me a nylon SLS print of this to the US?
Hi everyone,
I wanted to share
my small DIY cooling project I built for a dual ASUS Ascent GX10 setup.
My goal was to solve several constraints at the same time:
to improve cooling efficiency, ideally keeping the GPU below ~65°C instead of the ~85°C I was often seeing under load;
to keep the setup quiet, below roughly 36 dB;
and to reduce the heat buildup around the cables behind the two units.
The ideal approach seemed to be cooling from the rear, because that is where the GX10 units already exhaust hot air.
However, the rear area is also where all the cables are located, so placing a fan or duct directly behind the units was not practical.
I decided to build a rear extraction duct positioned at about a 45° angle instead of directly facing the back of the units. This leaves enough space underneath for cable routing, while still taking advantage of the natural upward movement of hot air and the negative pressure generated by a Noctua NF-A14 G2 fan used in exhaust mode.
The idea was to use the strong negative pressure from the fan to pull as much air as possible, while forcing the airflow to pass through the GX10 units from front to back. To do this, I only created the openings that were strictly necessary: openings for the rear ventilation areas and openings for cable pass-throughs. I tried to block as many bypass paths as possible so the air would not simply take the easiest route around the units.
I also added a flexible plastic seal between the rear grille area and the cardboard duct, to make sure air does not leak between the grille and the duct. The goal is to force the airflow through the intended openings only.
On the cable side, I added a kind of double cover to isolate the cable pass-through area as much as possible. This is meant to prevent the airflow from taking the shortest path through the cable opening instead of being pulled through the GX10 units. This part probably still needs a bit of refinement.
The current result is quite satisfying. Under load, I went from around 85°C down to about 61-65°C. My typical workload is batch inference with concurrency between C24 and C40, usually running Qwen3.6-35B-A3 in FP8.
Noise is still acceptable. I only measured an increase of about 2â3 dB in ambient noise around the units.
For now, the test is successful. Since I do not currently have access to a 3D printer, I built the prototype out of reinforced cardboard, but the concept could probably be improved with a proper 3D-printed duct.
I also have the plans/dimensions available if anyone is interested.
After you showing your DYI I thought I might also show mine, I have 2x 120mm fans, one below, one behind and a 140mm in front running on very low speed so you canât hear them, my only problem is even if I turn them up there is not really a difference in temps⌠need to do more benching but for now it just looks like a tank with fans
@sesmanovic the cat approved of the design:
Loved this!
Great CAD work, aka Cardboard Aided Design!
You have inspired me to draft up a rear mounted cooling duct for 120mm fan. 3D printing it now. No printing supports needed. Cable route underneath. Press fit.
Adjusted the 3D model slightly for a better fit.
DGX Spark Duct v2.stl.zip (291.1 KB)
3D printed
Installed
Donât know how much difference its making but I can feel the heat its drawing out, and its keeping it away from the cables.
Since everyone is flexing their cooling systems, I thought Iâd throw mine into the mix â behold, the DGX State-of-the-Art Cryo-Glass Thermal Management Systemâ˘, powered by kitchenware, frozen water, and questionable judgment.
DGX State-of-the-Art Cryo-Glass Thermal Management Systemâ˘
The DGX cooling system uses a revolutionary dual-layer thermal architecture consisting of:
-
A flat-bottom, heat-resistant glass casserole dish
Engineered by generations of grandmothers and lasagna scientists, this premium transparent thermal platform provides a smooth, stable surface for advanced heat distribution. Also, you can see through it, which is basically diagnostics. -
A flat-surface ice pack
This precision-cooled sub-zero slab delivers maximum thermal cool-down through the ancient and highly technical principle of âcold things make hot things less hot.â
Together, these components create a cutting-edge passive refrigeration environment capable of reducing operating temperatures, increasing vibes, and making nearby engineers quietly reconsider their career choices.
The flat glass base ensures even contact, while the ice pack introduces aggressive Arctic adjacency. This allows the DGX to experience what we call Maximum Thermal Cool Downâ˘, a phrase that sounds illegal in three countries and like it was invented in a garage at 2:14 a.m.
Key Features:
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Zero fan noise, because there are no fans.
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Transparent cooling interface for visual superiority.
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Emergency lasagna compatibility.
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No firmware updates required.
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Fully modular: remove the ice pack and the system becomes a casserole dish again.
-
Enterprise-grade desperation.
Technical Summary:
Heat goes down.
Cold goes up.
Science gets nervous.
Important Safety Note:
Condensation near electronics is bad. Like, âexplain this to the insurance companyâ bad. So technically this is less a certified cooling system and more a bold thermodynamic lifestyle choice.
Still, for maximum thermal cool down, nothing says âdata center innovationâ like kitchenware and frozen rectangles.
Note: I live in the Arizona so humidity is low. Donât try this in other climates.
That is a very nice looking rack. Are those the Ubiquiti NVR or NAS units?
ya they are nas pro 8 - 750 tb hot in raid 6
