简介

Use this guide to completely replace your logic board.

  1. Remove the eight 4 mm Phillips screws securing the lower case to the MacBook.
    • Remove the eight 4 mm Phillips screws securing the lower case to the MacBook.

  2. The lower case is constructed of rubber-coated aluminum. Do not excessively bend the aluminum during removal, as any permanent deformation will cause tolerance issues after reassembly. Slightly lift the lower case near the vent opening. Continue running your fingers between the lower and upper cases until the upper case pops off its retaining clips.
    • The lower case is constructed of rubber-coated aluminum. Do not excessively bend the aluminum during removal, as any permanent deformation will cause tolerance issues after reassembly.

    • Slightly lift the lower case near the vent opening.

    • Continue running your fingers between the lower and upper cases until the upper case pops off its retaining clips.

    • The location of these three clips is shown in the third picture.

  3. For precautionary purposes, we advise that you disconnect the battery connector from the logic board to avoid any electrical discharge. This step is optional and is not required.
    • For precautionary purposes, we advise that you disconnect the battery connector from the logic board to avoid any electrical discharge. This step is optional and is not required.

    • Use the flat end of a spudger to lift the battery connector up out of its socket on the logic board.

    • It may be easier to use your fingernails to lift up on both sides of the connector.

  4. Remove the following screws from the optical drive side of the rear vent:
    • Remove the following screws from the optical drive side of the rear vent:

    • Two 10 mm T8 Torx

    • Two 5.2 mm Phillips

  5. Remove the following screws from the port side of rear vent:
    • Remove the following screws from the port side of rear vent:

    • Two 10 mm T8 Torx

    • Two 5.2 mm Phillips

  6. Carefully lift the rear vent out of the upper case.
    • Carefully lift the rear vent out of the upper case.

  7. Use the flat end of a spudger to pry the AirPort/Bluetooth ribbon cable up off the logic board.
    • Use the flat end of a spudger to pry the AirPort/Bluetooth ribbon cable up off the logic board.

  8. Use a spudger to pry the fan connector straight up and out of its socket on the logic board. It is useful to twist the spudger axially from beneath the fan cable wires to release the connector. The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket. The layout of the logic board shown in the second picture may look slightly different than your machine but the fan socket is the same.
    • Use a spudger to pry the fan connector straight up and out of its socket on the logic board.

    • It is useful to twist the spudger axially from beneath the fan cable wires to release the connector.

    • The fan socket and the fan connector can be seen in the second and third pictures. Be careful not to break the plastic fan socket off the logic board as you use your spudger to lift the fan connector straight up and out of its socket. The layout of the logic board shown in the second picture may look slightly different than your machine but the fan socket is the same.

  9. Remove the following three screws securing the fan to the upper case: One 7.1 mm Phillips screw.
    • Remove the following three screws securing the fan to the upper case:

    • One 7.1 mm Phillips screw.

    • Two 5 mm Phillips screws.

    • Lift the fan out of the upper case.

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  11. Carefully pry the delicate rear speaker connector up off the logic board. These small L/R speaker connectors are quite easily broken.
    • Carefully pry the delicate rear speaker connector up off the logic board. These small L/R speaker connectors are quite easily broken.

    • Use extreme caution; this connector is easily destroyed.

  12. Use the flat end of a spudger to pry the optical drive connector up off the logic board.
    • Use the flat end of a spudger to pry the optical drive connector up off the logic board.

  13. Use a spudger to pry the right speaker connector and sleep LED connector up off the logic board. These connectors are very delicate and easily broken.
    • Use a spudger to pry the right speaker connector and sleep LED connector up off the logic board.

    • These connectors are very delicate and easily broken.

  14. Use the flat end of a spudger to pry the trackpad ribbon cable connector up off the logic board.
    • Use the flat end of a spudger to pry the trackpad ribbon cable connector up off the logic board.

  15. Use your fingernail to flip up the locking flap on the ZIF socket for the keyboard ribbon cable. Use the tip of a spudger to slide the keyboard ribbon cable out of its socket.
    • Use your fingernail to flip up the locking flap on the ZIF socket for the keyboard ribbon cable.

    • Use the tip of a spudger to slide the keyboard ribbon cable out of its socket.

  16. Use the flat end of a spudger to pry the hard drive cable connector up off the logic board.
    • Use the flat end of a spudger to pry the hard drive cable connector up off the logic board.

  17. Use a spudger to pry the left speaker connector and microphone connector up off the logic board. These connectors are very delicate and easily broken.
    • Use a spudger to pry the left speaker connector and microphone connector up off the logic board.

    • These connectors are very delicate and easily broken.

  18. Grab the plastic pull tab secured to the display data cable lock and rotate it toward the DC-In side of the computer. Grab the plastic pull tab secured to the display data cable lock and rotate it toward the DC-In side of the computer.
    • Grab the plastic pull tab secured to the display data cable lock and rotate it toward the DC-In side of the computer.

  19. Gently pull the display data cable connector away from its socket on the logic board. Pull the socket parallel to the face of the logic board.
    • Gently pull the display data cable connector away from its socket on the logic board.

    • Pull the socket parallel to the face of the logic board.

    • The display data cable socket is made of very thin metal and is easily bent. Be sure to pull the connector straight away from its socket.

  20. Remove the six 4.1 to 4.4 mm T6 Torx screws securing the logic board to the upper case.
    • Remove the six 4.1 to 4.4 mm T6 Torx screws securing the logic board to the upper case.

    • Remove the two 4.1 to 4.5 mm T6 Torx screws securing the MagSafe board to the upper case.

    • On some models, these screws may be T7. Be careful not to strip away the head with a smaller bit.

  21. Lift the side of the logic board opposite the ports out of the upper case. Rotate the logic board away from the upper case until the ports clear the lip molded in the upper case. Pull the logic board and MagSafe board away from the edge of the upper case as one piece.
    • Lift the side of the logic board opposite the ports out of the upper case.

    • Rotate the logic board away from the upper case until the ports clear the lip molded in the upper case.

    • Pull the logic board and MagSafe board away from the edge of the upper case as one piece.

    • The MagSafe board may get accidentally disconnected during this process. As a precaution, be sure the MagSafe board connector is securely seated in its socket before lowering the logic board back into the upper case.

    • Before lowering the logic board back into the upper case, be sure the left speaker and microphone cables are seated in their channels cut into the upper case (as seen in the third picture).

  22. Remove the four 8.3 mm shouldered Phillips screws securing the heat sink to the logic board.
    • Remove the four 8.3 mm shouldered Phillips screws securing the heat sink to the logic board.

    • Keep track of the springs under each of the screws.

  23. Lift the heat sink off the logic board.
    • Lift the heat sink off the logic board.

    • If you need to mount the heat sink back into the laptop, we have a thermal paste guide that makes replacing the thermal compound easy.

  24. Pull the DC-in board connector away from its socket on the logic board.
    • Pull the DC-in board connector away from its socket on the logic board.

    • Pull the connector parallel to the face of the logic board.

  25. Carefully flip the logic board over.
    • Carefully flip the logic board over.

    • Release the tabs on each side of the chip by simultaneously pushing each tab away from the RAM.

    • These tabs lock the chip in place and releasing them will cause the chip to "pop" up.

  26. After the RAM chip has popped up, pull it straight out of its socket.
    • After the RAM chip has popped up, pull it straight out of its socket.

    • Repeat this process if a second RAM chip is installed.

结论

To reassemble your device, follow these instructions in reverse order.

89等其他人完成本指南。

Starting in Step 10 there are very delicate connectors that are easily broken. I first attempted to lift one with a spudger and noticed it begin to crack. I found an alternative way that worked perfectly for all of these types of connectors. Using 2 straight pins, press the point of each one just on either side of the connector, between the connector and the housing. Then use each pin to evenly pry the connector up. It will pop right out of the socket with no damage.

scottgriz - 回复

My macbook has been gradually getting hotter and running slower. Recently it started displaying some weird behavior that I assumed was a failing HD since it's 5 years old. I ran the extended Apple Hardware Test (more than once for confirmation) and got the following error: 4SNS/1/40000000: TN1D-104.000. Googling suggested that the CPU's northbridge was reaching a temperature of 104 deg. C and that macbooks have issues with overheating that can be attributed to poor application of thermal paste.

I followed this guide. The fan, heatsink fins and the underside of the logic board were almost completely clogged with dirt and cat hair. Got rid of it that, cleaned the excessive globs of dried up thermal paste, reapplied thermal paste and put everything back together. The macbook is now running cooler and faster and video is running quite smoothly which was an issue previously. I reran the Apple Hardware Test which reported, "No trouble found".

aeevr - 回复

Hi, I have a mac book 4.1 with a gma x3100 32bit graphic chip, white plastic enclosure just like the one in the pictures.

The tutorial seems pretty detailed, great job, I feel confident I can get through without problems but I have a couple of questions.

Which logic board model will suit my mac book best, I also read that the heat sink and the SuperDrive connectors may be different, is that true?

thanks!

Andrea.

Andrea - 回复

This page is for a macbook 6.1 or 7.1. Wrong page for your mac!

rozakis -

I'm about to replace the logic board, assuming everything gets connected properly should it just boot up like nothing ever happened? Will I lose any data?

Zachary Evans - 回复

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