Laptop Repaste Guide
Where we are going we don't need thermal pastes, we got thermal pads!
Buying PTM7950
In case the above link is dead, click here
Alternative Pastes
Alternatively get one of these from nearby retailer
- Prolimatch Pk-3 Nano Aluminium
- Phobya Nanogrease Extreme
Application Method
- Cut the pad size a little bit bigger than the die size of CPU and GPU.
- Check online for exact dimensions of the CPU and GPU die.
- Apply like a screen protector (the pad might have protective plastic on both sides) on the die itself. (Check online for screen protector application tutorial before starting here)..
- Ensure there are no bubbled in your application.
- Screw Heatsink back in (make sure to do only one turn per screw in order dictated until every screw is tightened).
After Application - Mounting
- Make sure the application of the paste / pad is right before the Heatsink is mounted.
- It's not just the screw order that matters, but how you start screwing in the first place:
- The key is to turn the screw oppossite way until you hear an audible “click” ( This ensures the screw threads are properly seated).
- Do this for each screw when barely starting your turns.
- Lastly, follow the one turn per screw protocol.
Mounting Screw Order
- Every laptop has its own screw order. Make sure to first open your laptop and have a look on the heatsink for numbers engraved on the heatsink. Take a picture and mark them to see what order they have.
- Make sure to always follow the order depicted in the heatsink for optimal mouting pressure being distributed equally among the whole heatsink.
- Not following the screw order will lead to huge differences in temperature delta between cores, which in the end will make some cores throttle, while other cores will stay cool.
Liquid Metal
- Liquid Metal is another thermal compound that could be used instead of a normal thermal paste / pad. In order to know more about liquid metal, check these two videos
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- Very dangerous and finnicky. Not recommended for devices that move a lot.
- USE AT YOUR OWN RISK
Video Tutorials
In case of unsurety, follow this video tutorial or this one as a basic guide to repaste the laptop.
Legion slim 7i gen 7 2022 Teardown and Repaste
Rescrewing legion 5 pro for better die contact
Credits: Beyacon, Kaptan Yosun, Braxton
Recommended Thermal Pad sizes
- To start, we recommend you buy at least a 40x80mm sized pad
- You will be cutting them to exact size yourself
Die sizes
- RTX 3060 Laptop GPU: 20x15mm
- RTX 3070 Laptop GPU: 20x20mm
- Intel i7 11800H: 20x10mm
- AMD R7 5800H: 13×14