The reason the system is getting so hot is the excessiveamount of thermal paste applied. The large amount of paste hinders the heat transfer from the chip to the heatpipe, causing the heat to be dissipated into other components (system board, case, etc.). Improving the heat transfer between the chip and the heatpipe by re-applying a reasonable amount of paste means that more of the heat is traveling to the heatpipe, and consequently vented out of the system by the fans. This increased heat transfer to the heatpipe results in a lower system temperature because less heat is being dissipated into the other components in the system (case, etc).
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The reason the system is getting so hot is the excessiveamount of thermal paste applied. The large amount of paste hinders the heat transfer from the chip to the heatpipe, causing the heat to be dissipated into other components (system board, case, etc.). Improving the heat transfer between the chip and the heatpipe by re-applying a reasonable amount of paste means that more of the heat is traveling to the heatpipe, and consequently vented out of the system by the fans. This increased heat transfer to the heatpipe results in a lower system temperature because less heat is being dissipated into the other components in the system (case, etc).