Custom M18x all copper heatsinks

Hi all,
Been a while since I posted here.
I am looking into making some all copper GPU and CPU heatsinks for my R2 and wanted to see if anyone here was interested.
Still need to get materials so will probably have something together in a month or two. At this stage I am thinking that $100-150 per heatsink will be reasonable seeing as they will be labour intensive to make.

So let me know if your interested, if there is interest I'll get extra material

 

Cicichen on eBay has been making custom heatsinks for the older Alienware laptops for a while. His copper GPU heatsink has 6 heat pipes and sells for $77USD plus shipping so you'd have to be around that mark. I'm not sure if he makes a custom CPU heatsink though.

 

Thanks for letting me know, there is no cpu heatsink for the R2 cpu that I can find. I cant really compete with $77 I'm already over CA$50 for materials.

Very interesting to see what they have done though, I am surprised that they stacked the heatpipes, my plan is to flatten the heatpipe less and get 4 or 5 pipes in with the extra width saved.
The research I have done says that flattening a heatpipe more than 50% of its diamater reduces the heat capacity significantly, the trade off is obviously less contact area for the heatpipe to transfer energy.

It will be interesting to see if there is any difference. Does anyone have a 6 pipe heatsink on their M18x with before and after temps?

 

I'd also like to know if the custom heatsink makes any real difference. I'm not sure if anyone has the 6-pipe one but maybe @ssj92 grabbed one.

 

The issue with his heatsinks in so far as my experience with them for the Alienware 17 R1 is they arent level. Also you need to bypass PWM to even attempt seeing a difference in temperature as, if you have a better heatsink then the fan just runs slower and temps remain the same lol.

 

You mean the heatsink/pipes are twisted or the plate for cooling the GPU/ram etc isnt flat?
Yeh load temps are were the difference will be seen!!

 

Contact plate

 

I haven't gotten any of the custom made heatsinks for any of my aliens. From what I've seen contact issues are the worse problem. The OEM ones work well but if you can beat it and make one that's properly flat then maybe I'll take a CPU and GPU one from you.

 

Ok, Well I'll make some and report back with how I went

 

Would you be able to make a custom one that can accommodate the offset gpu core on this rtx 5000?

https://www.adlinktech.com/Products/Embedded_Graphics/Embedded_MXM_Modules/EGX-MXM-RTX5000?lang=en

 

I was hoping to have a go at a rtx5000 or A4500, I will need to get my hands on one first though for dimensions and testing.

 

Page 16 : https://www.adlinktech.com/Products...le=1874\EGX-MXM-RTX5000_50M-00043-1000_10.pdf

I'll get one for A4500 once it's finalized.

Would it be possible to create multiple holes, one for standard mxm 3.0b layout and one for that custom layout these companies are now using with core offset. I was thinking the bracket on heatsink that connects to x-bracket can be moved maybe?

 

Thanks for that link with the layout spec of the rtx5000, the only thing I'm missing is the hieghts of the chips and gpu.... the mxm standard they have on their site does have heights but not sure I want to assume it applies to the revised layout.

Been thinking how to have 2 or an adjustable retension system... if I go with a similar cantilevered spring that our gpu heatsinks have its almost impossible to put even pressure on the gpu die.... if I go the helical spring style like the cpu heatsink then its really difficult to keep the height down.
Having vram on 3 sides of the gpu is not such a bit deal but also makes it tricky.

 

Heights of the chips seem to be roughly equivalent from previous generations. Not sure about the ones in the back. But I did not have to modify my stock 100W NV gpu heatsink at all to install RTX 3000. Just had to use thermal pads of different sizes. RTX 5000 has same chip heights as RTX 3000.

For all we know A4500 might not even have this design so we'll see when they release the actual pics. Current pic is placeholder. It's literally the RTX 5000 pic.

What gives me hope for A4500 is it says 82x105 type b whereas RTX 5000 says 82x110 type b+