funny to see how many ppl here still believe in youtubers who are filming their videos "-20C mem temp wow results must do it!" just for hype and likes and not even mentioning potential problems of misalignment (even if you are polishing them very carefully), potential short circuit problems and requirements to maintain thermal paste more often.
http://www.quickmeme.com/img/fe/fe6e4391eed57c7329e79d65e288d6c1206eaf6a4d3e654f622841a310c092cc.jpg if the thermal pad is 2MM make sure you use 2mm copper shims.
It's a mistake already in the very first point. Copper pad is not flexible and can't be compressed. if you add thermal paste on top of 2mm copper pad where previously 2mm silicone thermal pads were installed, it will add even more making it 2mm+ leading to bad contact with GPU itself and causing overheating.
If its all a mistake how come its working perfectly? Even the guy in the video I dropped above did the same thing and still get the best result vs using a thermal pad, the same size as well.
