How long does conductonaut last?

Discussion in 'Hardware Components and Aftermarket Upgrades' started by Casowen, Aug 6, 2019.

  1. Casowen

    Casowen Notebook Consultant

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    I put on conductonaut last year with my laptop and it dropped temps across the board overall, but mainly with the CPU. After a long storage hiatus, the temps have gone up rather dramatically with the cpu hitting over 80c for the first time ever. Previously it wouldnt even go past 67c in a TS bench or cinebench, but gpu and cpu combined stress made both hit 82C way to fast, and that was on max fan speed. I had heard about it "drying" out and or crumbling to dust over time, so could that just be the case? Maybe the mounting screws got loose? I dont suppose there is some after market alternative to mounting screws that offer far better mounting pressure, yes? Laptop mounting pressure is notoriously bad, and if I do open up this thing I want to get it all right, and probably along with changing the thermal pads from stock. I cant find any compatible screw metric at a local hardware store because they are far to small, so help here would be appreciated.

    Laptop is a mech15 and it cools beautifully normally.
     
  2. Falkentyne

    Falkentyne Notebook Prophet

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    Conductonaut needs a complete seal or barrier of some sort+firm fitting decent pressure (PSI) heatsinks to remain stable. If there is no seal and the heatsinks are weak, oxygen molecules will accelerate the ability of gallium to be absorbed into copper. This will leave indium and tin behind which will harden back to its natural state if the gallium is absorbed, which will leave uneven contact surface and bad thermal transfer.

    You can see this effect in a simple real life test, provided you have extra LM to spare. Take any old copper block, old heatsink or other flat copper something that can be laid inverted and flat, put LM on it and spread it fully, then leave it sitting upright exposed directly to air, in a low dust area. In about three weeks, the LM will be completely hardened.
     
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  3. Casowen

    Casowen Notebook Consultant

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    I see. What kind of seal would you recommend then? It would have to be tight, and resistant to high temperatures and immune to off gasing as is the case when rubbers and plastics get to hot.

    Conversely I also have kyronaut and DX1(probably the same as nano grease extreme) to use.
     
  4. Frencho

    Frencho Notebook Enthusiast

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    Do you fellas notice any thermal degradation over time on your gaming laptops with Conductonaut properly applied by either qualified DIYers or resellers such as HIDevolution?

    This case study by Gamer's Nexus concluded Conductonaut has good longevity as there were no temperature drops after 1 year of use (thermal cycling). But in the end, we're talking about one sample.

     
  5. Deks

    Deks Notebook Prophet

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    If the laptop was in storage for a while, it could also be suffering from a simple dust buildup.
    You'd be surprised how often this causes temperatures to rise over time - especially in dusty areas.
    My advice would be to open up the thing and check the buildup of dust on the fans, air-vents and the space between the fans and air-vents.

    Pressure is important, and laptops heatsinks don't generally come with good pressure, so that could play a part... but if the initial application of Conductonaut dropped temps, then its possible its a case of bad batch and/or dust buildup.
     
  6. Casowen

    Casowen Notebook Consultant

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    I ran compressed air all over the vents and fans to make sure that wasnt an issue, and looking into it with light there is no dust build up and its quite clean. It was in storage with no access to outside air, so there is no chance of dust building up.

    In all likelyhood its a combination of either of lose of pressure, LM oxidization, bad batch or both. I noticed with HidEvolution that they put foam barriers around the die, which may have something to do with reducing oxidation, but that foam doesnt look very air tight.
     
  7. Casowen

    Casowen Notebook Consultant

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    Ya, its one sample against a myriad complaints saying otherwise. My issue with his test is that he is using a die delid, and that heat spreader once its back on will of course protect against outside air and hence oxidization. Not sure about the gpu die but its not included in the test. I am going to say his test is irrelevant to laptops.
     
    Last edited: Aug 6, 2019
  8. NB_Neenja

    NB_Neenja Notebook Consultant

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    Can I ask where you learned this? I'd like to read up on the chemical composition of LM. Getting ready to repaste my laptop.
     
  9. Casowen

    Casowen Notebook Consultant

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    This comes largely from user reports of using LM. By far the most successful usage is when people do it for deliding, but not direct on die contact where there is circulating air exposure.

    LM is largely gallium

    HidEvolution and other boutique laptop sellers all do the foam barrier.
     
    Last edited: Aug 6, 2019
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  10. NB_Neenja

    NB_Neenja Notebook Consultant

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