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How to clean and maintain Acer Aspire 4920 ventilation system

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How to clean and maintain Acer Aspire 4920 ventilation system: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

  • There are 4 screws numbered from 1 to 4. We should remove them in order of sequence, from 1 to 4. Use screwdriver to twist anticlockwise

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