1 Remove battery from laptop.
2 Unscrew Ram cover. Remove plastic cover from behind battery area. Remove screws and keep track of where they come from.
3 Remove plastic cover slowly. If it's stuck, go back and check for a screw you missed removing.
4 Remove tiny screws over fan covers. Use magnetic screwdriver to avoid losing screws.
5 Use cotton swab or compressed air to clean blades and heat sinks.
6 Reassemble
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