Intro:
Agar aapka MacBook overheat ho raha hai, ya fan zyada chal raha hai, ya performance slow ho gayi hai — toh heat sink ko clean ya replace karna zaroori ho sakta hai. Yeh guide aapko dikhayegi kaise heat sink ko safely remove aur replace karein.

🧰 Tools You’ll Need

  • Phillips #00 screwdriver

  • T6 Torx screwdriver

  • Spudger (plastic pry tool)

  • Isopropyl alcohol (thermal paste clean karne ke liye)

  • New thermal paste

  • Lint-free cloth ya microfiber cloth

🛠️ Step‑by‑Step Instructions

Step 1: Remove Lower Case Screws

  • MacBook ko ulta rakho.

  • Neeche ke 10 screws nikaalo:
      • 3 screws — 14.4 mm Phillips #00
      • 3 screws — 3.5 mm Phillips #00
      • 4 screws — 3.5 mm “shouldered” Phillips #00

  • Jab wapas screws lagao, chhote screws ko case ki curved surface ke perpendicular direction mein align karo (seedha down nahi jaate).

Step 2: Remove the Lower Case

  • Fingers se vent side ke paas lower case ko pry karo.

  • Lower case ko lift karke hatao.

Step 3: Disconnect the Battery Connector

  • Spudger ka edge use karo, battery connector ko logic board se gently pry up karo.

  • Dono short sides se thoda thoda “walk” karo taki connector safely socket se alag ho jaaye.

  • Corners bahut fragile hote hain — careful ho.

Step 4: Bend the Battery Cable

  • Battery cable ko thoda sa side mein bend karo taki woh socket ya other parts se contact na kare jab baaki steps kar rahe ho.

Step 5: Disconnect the Fan Connector

  • Spudger ka edge use karke fan connector ko logic board se gently pry up karo.

  • Fan socket aur connector plastic parts delicate hote hain — break na ho jaye, careful ho.

Step 6: Remove Fan Screws

  • Fan ko logic board se secure karne wale 3 screws remove karo:
      • One screw — 7.2 mm (T6 Torx)
      • Two screws — 5.3 mm (T6 Torx)

Step 7: Remove the Fan

  • Fan ko gently lift karke uski recess se nikaalo.

  • Cable thodi stuck ho sakti hai — dhyan se nikaalna.

Step 8: Disconnect the Right Speaker/Subwoofer Cable

  • Spudger ka tip use karke right speaker/subwoofer cable ko upper case ke retaining finger se gently pull karo.

  • Cable ko upward lift karo taki connector logic board se alag ho jaaye.

Step 9: Remove Logic Board Screws

  • Logic board ko upper case se secure karne wale 5 screws remove karo:
      • 4 screws — 3 mm Phillips
      • 1 screw — 3.5 mm Phillips

Step 10: Remove the Logic Board

  • Logic board ko right edge se lift karo.

  • Gently logic board ko upper case se nikaalo, dhyan rahe ki flexible connection DC-In board ke saath na atke.

Step 11: Remove Heat Sink Screws

  • Heat sink ko logic board se secure karne wale 3 screws remove karo:
      • 8.4 mm Phillips #1 screws

  • Har screw ke neeche ek spring hoga — usse dhyan se nikaalo.

Step 12: Remove the Heat Sink

  • Heat sink ko processor se gently lift karo.

  • Agar heat sink stuck ho raha ho, toh plastic spudger ka use karke dheere se pry karo.

  • Dhyan rahe, processor ke surface mount components ko damage na ho.

Step 13: Clean Old Thermal Paste

  • Isopropyl alcohol aur lint-free cloth ka use karke purani thermal paste ko processor aur heat sink se clean karo.

  • Surface ko gently wipe karo taki koi residue na rahe.

Step 14: Apply New Thermal Paste

  • Processor ke center mein ek chhota sa thermal paste ka dabba lagaao.

  • Jab aap heat sink ko wapas lagaenge, paste evenly spread ho jayega.

Step 15: Reinstall the Heat Sink

  • Heat sink ko processor ke upar carefully align karo.

  • Screws ko wapas lagaake heat sink ko logic board se secure karo.

Step 16: Reinstall the Logic Board

  • Logic board ko upper case ke andar carefully place karo.

  • Screws ko wapas lagaake logic board ko secure karo.

Step 17: Reconnect the Speaker/Subwoofer Cable

  • Right speaker/subwoofer cable ko logic board ke connector mein wapas plug karo.

Step 18: Reconnect the Fan Connector

  • Fan connector ko logic board ke socket mein wapas plug karo.

Step 19: Reconnect the Battery Connector

  • Battery connector ko logic board ke socket mein wapas plug karo.

Step 20: Reinstall the Lower Case

  • Lower case ko upper case ke upar align karo.

  • Screws ko wapas lagaake lower case ko secure karo.

🔁 Reassembly

Sab steps ko reverse order mein karo:

  • Logic board ko fit karo & screws lagao

  • Fan connector wapas attach karo

  • Battery cable aur connector wapas place karo

  • Lower case lagao & screws wapas tight karo

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