Could a laptop use a two cpu coolers?

Discussion in 'Notebook Cosmetic Modifications and Custom Builds' started by Prax0s, Apr 27, 2017.

  1. Prax0s

    Prax0s Notebook Enthusiast

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    I raised this doubt just out of curiosity, so this is a hypothetical case.

    For example, if we have a laptop, which does not work the screen and the keyboard is defective, we dismantle everything and only leave the mainboard of the laptop, could you use two CPU coolers for the CPU and the GPU of the laptop? You will of course have a housing adapted for it.
     
  2. bennyg

    bennyg Notebook Deity

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    Possible but loads of potential issues

    Mounting them on stock screw holes would be the first challenge. Clearance around the socket is another thing usually not present in laptops that may cause problems

    A BGA soldered CPU would sit much lower than a desktop CPU so may need a sizeable shim. Even an old mobile socket would need a shim as it's lacking a heatspreader.

    The pcb may not be reinforced enough to cope with the weight especially since most would be mounted on the underside and gravity would pull the mass downwards.

    Youll need to match up the fan headers if you want the laptop to control fan speed, some laptops may even refuse to work if no CPU/GPU fan is detected.

    The GPU may also need cooling on the memory and vrm chips if it's high end.

    Also the OEM keyboard is not necessary, booting with a USB keyboard should be no problem (no different than booting with external screen with internal panel disconnected)

    I'd keep the motherboard mounted in the shell of the base just to protect it cutting holes and openings as required

    As you can see getting second hand OEM fans and heatsinks is the far easier option
     
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  3. TheReciever

    TheReciever Notebook Evangelist

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  4. ChanceJackson

    ChanceJackson Notebook Evangelist

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  5. TheReciever

    TheReciever Notebook Evangelist

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    Works fine on two separate computers, must be a problem on your end...
     
  6. ChanceJackson

    ChanceJackson Notebook Evangelist

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    Good to know I'll try another system I was using my phone
     
  7. joker105

    joker105 Notebook Consultant

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    I suggest you maximize the airflow on the existing fans first, there will be noise trade-off but it's up to you what you want to prioritize. If that's not enough, invest on liquid metal thermal compound as long as you're not using aluminum heatsinks. If that's not enough, and you have defective laptop battery, you can try to use that to add a second fan like i did, you're lucky if the battery pack sits beside the gpu, but it's important to determine the right power source. I used USB 5 volts but it has some effect on the functionality of the other ports is hte power draw is too much, but typical laptop fans just have .40 amps so that's sufficient (mine uses .5 amps so thats 2.5watts so sometimes it draws too much power if you have other usb devices connected). you have to study the air intakes and separation of airflow of the 2 fans to be more efficient.

    Here's what i did a few years ago but it's been through even more changes and works better even at 4ghz stable, but i normally meet the power limit of my power brick so it tends turn off when it does, by battery pack supplies more power so it's more stable when i use it.

    http://forum.notebookreview.com/thr...l-laptop-fan-to-your-laptop-heres-how.745654/
     
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