Macbook A1398 Overheating Apply New Thermal Paste

MacBook Pro (Early 2015, 15-inch, Model A1398) Thermal Paste Application Guide

Introduction

• Objective: Applying new thermal paste to reduce overheating and fan noise in MacBook Pro (Early 2015, 15-inch, Model A1398).
• Tools Needed: Pentalobe screwdriver, thermal compound (e.g., MX-4 Thermal Compound 2019 Edition), alcohol wipes, thermal pads.

Steps for Applying Thermal Paste

1. Preparation:
   • Power off the MacBook Pro.
   • Remove all screws from the back cover using a Pentalobe screwdriver.
   • Carefully lift and remove the back plate.
2. Accessing the CPU and GPU:
   • Locate the CPU and GPU on the logic board.
   • Identify the screws holding the heatsink in place.
3. Removing the Heatsink:
   • Remove the screws from the heatsink, including the tension bar screws.
   • Gently lift the heatsink off the CPU and GPU.
   • Be cautious of the rubber placements and cable management brackets during removal.
4. Cleaning Old Thermal Paste:
   • Use alcohol wipes to gently remove the old thermal paste from both the CPU, GPU, and the heatsink.
   • Ensure a clean, paste-free surface on both the chips and the heatsink.
5. Applying New Thermal Paste:
   • Apply a small amount (size of a small grain of rice) of thermal paste on both the CPU and GPU.
   • Using a clean tool or finger in a plastic wrap, gently spread the paste evenly over the chip surface. Ensure a thin, even layer.
6. Reattaching the Heatsink:
   • Carefully realign the heatsink over the CPU and GPU.
   • Replace and tighten the screws, ensuring the tension bar is correctly positioned.
   • Reattach any rubber placements and brackets that were moved.
7. Final Steps:
   • Double-check all connections and placements.
   • Replace the back cover and screw it back in place using the Pentalobe screwdriver.

Additional Tips

• Screw Tracking: Keep track of all screws and their positions as they can be of different sizes.
• Handling: Handle the heatsink and internal components with care to avoid damage.
• Testing: After reassembly, turn on the MacBook to test if the overheating issue has been resolved.

Conclusion

Applying new thermal paste can significantly help in reducing overheating and excessive fan noise in MacBook Pro models. This preventive maintenance can extend the life of your MacBook. If you are unsure about any step or uncomfortable performing this task, it is recommended to consult a professional. Good luck with your application, and stay safe!