MacBook Unibody Model A1278 RAM Replacement

Accessing the RAM in this computer is straightforward and requires minimal disassembly.

Sections
Tools

Edit Step 1 Access Door  ¶ 

Image 1/1: Depress the grooved side of the access door release latch enough to grab the free end.  Lift the release latch until it is vertical.

Edit Step 1 Access Door  ¶ 

  • With the case closed, place the Unibody top-side down on a flat surface.

  • Depress the grooved side of the access door release latch enough to grab the free end. Lift the release latch until it is vertical.

Edit Step 2  ¶ 

Image 1/1:

Edit Step 2  ¶ 

  • The access door should now be raised enough to lift it up and out of the Unibody.

Edit Step 3 Battery  ¶ 

Image 1/1: Grab the white plastic tab and pull the battery up and out of the Unibody.

Edit Step 3 Battery  ¶ 

  • Be sure the access door release latch is vertical before proceeding.

  • Grab the white plastic tab and pull the battery up and out of the Unibody.

Edit Step 4 Lower Case  ¶ 

Image 1/1: One 3 mm Phillips screw.

Edit Step 4 Lower Case  ¶ 

  • Remove the following eight screws securing the lower case to the chassis:

    • One 3 mm Phillips screw.

    • Three 13.5 mm Phillips screws.

    • Four 3.5 mm Phillips screws.

Edit Step 5  ¶ 

Image 1/1:

Edit Step 5  ¶ 

  • Using both hands, lift and remove the lower case off the upper case.

Edit Step 6 RAM  ¶ 

Image 1/1: These tabs lock the chip in place and releasing them will cause the chip to "pop" up.

Edit Step 6 RAM  ¶ 

  • 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.

Edit Step 7  ¶ 

Image 1/1: Repeat this process if a second RAM chip is installed.

Edit Step 7  ¶ 

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

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

Conclusion

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

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13 Comments

Add a comment

Open back of unit, press two grey sides surrounding the chip, pull out the top (leave the bottom 2gb in) put in the new (4gb) chip; now there are 6gb of ram.

mrstiffanyjudson - Reply

I just upgraded to 2 4GB chips. Works fine sofar!

Sten Folkerman - Reply

That's awesome! I thought that I could only upgrade the RAM to 4GB (which is what I have now). Can you give me the type of RAM that you installed? I have this exact model MacBook.

Jonathan -

Uh oh. I replaced my 2 1GB ram with 2 2GB. I turned it on and it beeps at me about every second, the front status light blinks in time, but nothing else....what next?

dunkelcreature - Reply

Sounds like bad RAM. I would contact who you purchased it from. If it was us, email support [at] ifixit [dot] com

Scott Dingle -

I noticed the back of the Macbook Pro in the picture looks different than mine but I have an A1278 too. What year is the one in the display and would I follow these same directions to replace RAM on a mid-2010 Unibody Macbook Pro.

Sharizzel - Reply

I have used your guide several times, and appreciate how clear you are. I found that my PH#00 tool was too big; the PH#000 worked perfectly-- we did buy this used and it's "possible" that the screws were replaced-- but it would seem odd if all of them were-- having said that, there are 3 missing-- luckily the case seems to be holding together ok.

beth leonhardt - Reply

Piece of cake! :)

Gabriel Mattos - Reply

I replaced my 2x 1GB ram by 2x 2GB out of my Mac Book Pro. Works fine with the faster DDR3 RAM 1333 Mhz PC3-10600 so far!

oxolong - Reply

Hi, which model of the macbook? I tried but did not succeed!

newageemo -

Great tutorial ! great step !

Leo Etcheverry - Reply

On my model, it seemed the top-left was 3.5mm and the bottom 4 were 3 mm.

Jim - Reply

So happy :D Why to go elsewhere ?

Leo Etcheverry - Reply