MacBook Unibody Model A1278 RAM Replacement

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

Sections

Edit Step 1 Access Door  ¶ 

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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  ¶ 

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Edit Step 2  ¶ 

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

Edit Step 3 Battery  ¶ 

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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  ¶ 

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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  ¶ 

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Edit Step 5  ¶ 

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

Edit Step 6 RAM  ¶ 

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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  ¶ 

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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.

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

For more information, check out the MacBook Unibody Model A1278 device page.

Required Tools

Phillips #00 Screwdriver

$5.95 · 50+ In stock

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Comments Comments are onturn off

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

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

Jim, · Reply

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