Copper heatsinks

[kenny27]

I am working on making some all copper heatsinks for the R2, if anyone is interested please let me know. 

Just looking for some input on Primary GPU heatsink variations / achieving compatibility with as many GPUs as possible. There are 3 variations that I can think of:

1. Standard Dell AMD heatsink

2. 1070 heatsink with fins cut out of the heatsink

3. an RTX 5000 and RTX A4500 heatsink with an offset core. 

For the standard layout you can see in the Image attached I am planning to make areas 1 2 3 and 5 as close to the dell heatsink as possible both in coverage and heights. 

Is there any value in making area 4 the same level as area, are there any cards used in the m18x that could use this? And are there any other ideas/modifications I should be including or having a variation for?

 

[Azther]

do you also intend on making CPU heatsinks? I for one have been looking around for a 3pipe heatsink for some time with little success due to how rare they are

[kenny27]

Yes hoping to make some CPU heatsinks. I haven't looked to hard yet but I'm thinking biggest issue will be getting the right spring and screw setup.

[Azther]

ah sweet, do you think its feasible to make special extended length ones for those who dont use a 2nd gpu? so the cpu heatsink can take advantage of the 2nd unused gpu fan?

[kenny27]

Thats not a bad idea, Yes it is possible there is enough room to run the heatpipes over the secondary mxm slot, will be a pricey heatsink tho for maybe not much gained... running out of room on the cpu for the extra heatpipes.

I'd also thought of giving the primary gpu 2 heatsinks and swapping the cpu heatsink over to the secondary gpu, but again will be tricky to make.

[Azther]

even if the gains arent much, id be willing to pay the premium for extra gains and to also not let that spare fan go to waste honestly. Im sure extending the 3 pipes over to the additional radiator would help with cooling the XM chips

[Tenoroon]

18 hours ago, kenny27 said:

Thats not a bad idea, Yes it is possible there is enough room to run the heatpipes over the secondary mxm slot, will be a pricey heatsink tho for maybe not much gained... running out of room on the cpu for the extra heatpipes.

I'd also thought of giving the primary gpu 2 heatsinks and swapping the cpu heatsink over to the secondary gpu, but again will be tricky to make.

Do you have access to heatpipes and have the ability to bend them at specific angles? 

[kenny27]

7 hours ago, Azther said:

even if the gains arent much, id be willing to pay the premium for extra gains and to also not let that spare fan go to waste honestly. Im sure extending the 3 pipes over to the additional radiator would help with cooling the XM chips

My idea would be to run 2 pipes to the cpu heatsink and 2 to the secondary gpu heatsink over the mxm slot. 4 pipes is basically the practical limit width ways and cant stack the heat pipes otherwise the keyboard will be pushed up also cant extend the current pipes as the screen hinge is in the way.

To  give you an idea just my cost for the copper (plate, pipes, heatsink) is looking be over $80CAD  

7 hours ago, Tenoroon said:

Do you have access to heatpipes and have the ability to bend them at specific angles? 

Was trying to source heat pipes from china but they are not that helpful with specs or info, in the end I wasn't game to risk that much money and time for a sub par product. Waiting for a quote on pipes closer to home.

Making a bending die (once I have confirmed min bend radius's from a supplier) and a press to flatten and get elevation changes. Dell heat pipes are 2.5mm thick, my research has found less that 3-3.5mm affect performance so will get some gains having a 3.5mm pipe.

An oven is also in the works to flow the solder.

[mujtaba]

That would be such a cool project 🙂 Subscribing

I think the first step is to get out the existing heat-pipes out and try to make one that first exactly. That would a) allow for benchmarking and b) let you see to what tolerance can you make a heatsink with all the pipes. welding, etc.

I would also suggest probing /r/AskEngineers on reddit. The specialized subreddit are usually very helpful and friendly.

[Tenoroon]

5 hours ago, kenny27 said:

My idea would be to run 2 pipes to the cpu heatsink and 2 to the secondary gpu heatsink over the mxm slot. 4 pipes is basically the practical limit width ways and cant stack the heat pipes otherwise the keyboard will be pushed up also cant extend the current pipes as the screen hinge is in the way.

To  give you an idea just my cost for the copper (plate, pipes, heatsink) is looking be over $80CAD  

Was trying to source heat pipes from china but they are not that helpful with specs or info, in the end I wasn't game to risk that much money and time for a sub par product. Waiting for a quote on pipes closer to home.

Making a bending die (once I have confirmed min bend radius's from a supplier) and a press to flatten and get elevation changes. Dell heat pipes are 2.5mm thick, my research has found less that 3-3.5mm affect performance so will get some gains having a 3.5mm pipe.

An oven is also in the works to flow the solder.

I see. I'm looking for some specific heatpipes for a heatsink mod for my Clevo P870DM, if you are able to source some "custom" ones, I'd be willing to pay a bit for some. Everywhere I have looked its either too expensive, or not the bends I need for them to fit right.

[kenny27]

1 hour ago, Tenoroon said:

I see. I'm looking for some specific heatpipes for a heatsink mod for my Clevo P870DM, if you are able to source some "custom" ones, I'd be willing to pay a bit for some. Everywhere I have looked its either too expensive, or not the bends I need for them to fit right.

Ah ok, do you have dimensions of what you need?

[Tenoroon]

28 minutes ago, kenny27 said:

Ah ok, do you have dimensions of what you need?

Not currently, but if are willing to help me out, I can have them in about a week. I've been working with a buddy to make models to 3D print and ensure they are the right sizes, we're still working on refining the models right now.

[kenny27]

Sounds good

[Azther]

9 hours ago, kenny27 said:

My idea would be to run 2 pipes to the cpu heatsink and 2 to the secondary gpu heatsink over the mxm slot. 4 pipes is basically the practical limit width ways and cant stack the heat pipes otherwise the keyboard will be pushed up also cant extend the current pipes as the screen hinge is in the way.

To  give you an idea just my cost for the copper (plate, pipes, heatsink) is looking be over $80CAD  

Was trying to source heat pipes from china but they are not that helpful with specs or info, in the end I wasn't game to risk that much money and time for a sub par product. Waiting for a quote on pipes closer to home.

Making a bending die (once I have confirmed min bend radius's from a supplier) and a press to flatten and get elevation changes. Dell heat pipes are 2.5mm thick, my research has found less that 3-3.5mm affect performance so will get some gains having a 3.5mm pipe.

An oven is also in the works to flow the solder.

sounds good to me, ill be keeping an eye on this thread since i do intend on upgrading my m18x to a XM chip in the future, however my current single pipe heatsink is holding me back xD

[Maxware79]

5 hours ago, Azther said:

sounds good to me, ill be keeping an eye on this thread since i do intend on upgrading my m18x to a XM chip in the future, however my current single pipe heatsink is holding me back xD

Just out of interests sake, what would you be willing to spend on a 3920XM with triple pipe heatsink?

Since I no longer have my 1070 the XM chip is kind of a waste, even though it would be sad to get rid of it. Damn thing cost me $1000 back in 2012 🤪

 

[Maxware79]

5 hours ago, Azther said:

sounds good to me, ill be keeping an eye on this thread since i do intend on upgrading my m18x to a XM chip in the future, however my current single pipe heatsink is holding me back xD

Actually, take a look at this one. Excellent price for the triple heatsink! Apparently the M18x and 18 use the same one. Dell Part# 00VMK2

https://www.ebay.com.au/itm/174802775477?hash=item28b30eadb5:g:PfMAAOSwVtZaB9m0&frcectupt=true

Wait, screw that one. Check this one out! $7!!

 

[Azther]

2 hours ago, Maxware79 said:

Actually, take a look at this one. Excellent price for the triple heatsink! Apparently the M18x and 18 use the same one. Dell Part# 00VMK2

https://www.ebay.com.au/itm/174802775477?hash=item28b30eadb5:g:PfMAAOSwVtZaB9m0&frcectupt=true

Wait, screw that one. Check this one out! $7!!

 

ty for the link, are you sure they are the same? the screw placement on the right side looks to be off center

[Maxware79]

I've heard people say before that the CPU heatsinks are interchangeable but I've never tested it myself. 

If you Google 00VMK2 it shows it being for both models. 

[Azther]

i checked mine and the screwholes are completely even and squared off, reason i question it is alot of ppl online confuse the aw 18 and m18x models

[Tenoroon]

31 minutes ago, Azther said:

i checked mine and the screwholes are completely even and squared off, reason i question it is alot of ppl online confuse the aw 18 and m18x models

I'm just confused as to why Dell decided to put a 1 pipe heatsink on a DTR. There's enough space to have a 2 or 3 pipe heatsink, one of the many confusing aspects of Dell...

[Maxware79]

39 minutes ago, Azther said:

i checked mine and the screwholes are completely even and squared off, reason i question it is alot of ppl online confuse the aw 18 and m18x models

Yep, looks square to me compared to the other one. Ebay strikes again!

 

8 minutes ago, Tenoroon said:

I'm just confused as to why Dell decided to put a 1 pipe heatsink on a DTR. There's enough space to have a 2 or 3 pipe heatsink, one of the many confusing aspects of Dell...

If they can save 50c they will. Just look at the 18 motherboard. They put cheaper components on them and had lots of issues. Probably saved them about $5 per board. 

[Azther]

it suits my needs currently, even with a single pipe the 3740qm peaks at 80c full load, or hovers around the 90s if i overclock it. still debating if i wanna run it at those temps or not (overclocking it), it should be fine since its limit is 100c but i still worry

[ssj92]

I'm still interested @kenny27

I am still waiting to see if A4500 has offset core or not. the pics are still not finalized. If the whitepaper reveals the core is not offset we may be able to get away without having to have one support offset cores. 

[kenny27]

Does any one use liquid metal? I used to but it eventually reacts with the copper so I was thinking of nickel plating the die areas or even the whole heatsink... anyone keen for that?

1 minute ago, ssj92 said:

I'm still interested @kenny27

I am still waiting to see if A4500 has offset core or not. the pics are still not finalized. If the whitepaper reveals the core is not offset we may be able to get away without having to have one support offset cores. 

ok no worries I'm still away of having anything... chinese new year is going on so still waiting for material to ship

[ssj92]

I don't use liquid metal anymore. But I think there may be some here that still do.