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How to clean and maintain Acer Aspire 4920 ventilation system

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Reassemble the back cover

Reassemble the battery

Now it is finished. Open your laptop. Start the OS. Use some applications such as "CPUID Hardware Monitor", "Temp core", "Everest Ultimate Edition" to check temperature of CPU, GPU, Hard disk, RAM. Their temperature is now lower than before.

End of guide! Thanks you for your attention!

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