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Inspiron 15 7559 high temps after liquid metal repasting

I own a Dell Inspiron 15 7559 since 3 years. I use it for gaming and college CAD work. Lately I was experiencing high CPU temps so I decided to replace the stock thermal paste with LM conductonaut. I cleaned the old thermal paste from heatsink, cpu and GPU properly with cotton swabs and 99% isopropyl alcohol. Also applied electric tape for prevention and applied a small layer of LM on CPU, GPU and contact points on heatsink. When I run HWmonitor I'm getting CPU package temp between 50-60 degrees on 10% CPU utilisation. The GPU temps are fine. I tried the whole process twice but no improvement. The process is the i7 6700HQ. Need some help.

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Use some cardboard to rub the liquid metal into the heatsink. You'll want it to "wet" the surface of both the heatsink and CPU die, and the heatsink is usually a bit tricky. A piece of cardboard works well to get it to wet the heatsink.

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