[* black] Maybe when you buy a new fan, the merchant will equip you with about 3mm of black insulating tape. If not, you can cut black insulating tape about 1.5 cm long and 3 mm wide or use the old tape of the computer to fix the wires to prevent them from moving.
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[* red] Cut black insulating tape about ***1.5 cm long and 3 mm wide*** or use the old tape of the computer to fix the wires to prevent them from moving.