The first one is very simple, that is, without disassembling the notebook or only disassembling the keyboard, directly use the hair dryer to blow dust or brush the outside of the fan. This basic function is very small, and it is useless for a lot of dust and fan shaft ash sludge.
The second is to completely remove the fan. To do this, most notebooks need to completely remove the notebook motherboard to take out the fan. The fan is disassembled to clean the heat sink, and the fan is cleaned and refueled. This is the most thorough. The fan has not been invited for several years, or the fan reported an error. This will be useful.
The specific price varies from tens of yuan to 100 yuan depending on how to clean it up.
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