Results of my Copper Shim Only (No Thermal Pad) Mod
Disclaimer: I'm an absolute beginner and have never before done anything like this.
Specs: 2020 MacBook Air i3 / 8GB / 256GB
Pre-mod idle temp: 30°C
Post-mod idle temp: 27°C (10% decrease)
Pre-mod Cinebench 20 scores:
761 pts (CPU)
376 pts (Single Core CPU)
Post-mod Cinebench 20 scores:
843 pts (CPU) (10,7% increase)
380 pts (Single Core CPU) (marginal increase)
Careful with the heat sink screws - they were definitely a T3 on mine, not a T4!
Find some pictures attached.
Thanks again for all the helpful comments in this thread!
So, I did the copper shim mod back in June. I'm still having issues with loud fan noise when I'm in a video call via Zoom or Skype, so I decided to add a heatpad, as well, hoping for a performance increase and less fan activity. I used a
30x30x2mm Grizzly Minus Thermal Pad 8, which leaves some space around the corners of the heatsink for airflow.
Here are my results.
Specs: 2020 MacBook Air i3 / 8GB / 256GB
Idle temperatures
Pre-mod: 30°C
Post-copper shim only mod: 27°C (10% decrease)
Post-copper shim and heatpad mod: 26,4°C (12% decrease)
Cinebench 20 scores
Pre-mod: 761 pts and 376 pts (Single Core)
Post-copper shim only mod: 843 pts (10,78% increase) and 380 pts (Single Core)
Post-copper shim and heatpad mod: 871 pts (14.45% increase) and 383 (Single Core)
Not even close to the results some of you have been reporting in this thread but then again, I'm new to this and didn't expect to achieve the best results right away. I guess I'm happy for now.
Enjoy the rest of your Sunday!