MacBook Unibody Model A1278 RAM Replacement

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

Sections
Image #1

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.

Image #1

Edit Step 2  ¶ 

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

Image #1

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.

Image #1

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.

Image #1

Edit Step 5  ¶ 

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

Image #1

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.

Image #1

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

Related Products

PC3-8500 2 GB RAM Chip

$29.95 · 5 In stock

PC3-8500 1 GB RAM Chip

$9.95 · 16 In stock

Recommended Tools

Universal Drive Adapter

$29.95 · 50+ In stock

iFixit Lock Pick Set

$29.95 · 50+ In stock

Inspection Scope

$39.95 · 50+ In stock

Frictionless Ratchet

$24.95 · 50+ In stock

Portable Anti-Static Mat

$34.95 · 43 In stock

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,

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

Jim, · Reply

View Statistics:

Today: 42

This Week: 198

This Month: 766

All Time: 110,061