MacBook Pro: how to remove or install memory

Find out how to remove or install memory in your MacBook Pro laptop computer.

To identify your MacBook Pro model, use the information in How to identify MacBook Pro models.

After you’ve identified which model you have, locate it in the list below to see the instructions for that model. Note: Apple laptops not listed in this table have non-removable memory.

Applicable Models

The instructions provided below are for the following MacBook Pro (13-inch) models:

• MacBook Pro (13-inch, Mid 2012)

• MacBook Pro (13-inch, Late 2011)

• MacBook Pro (13-inch, Early 2011)

• MacBook Pro (13-inch, Mid 2010)

• MacBook Pro (13-inch, Mid 2009)

Memory specifications

Use the tables below to confirm the memory you’re installing is compatible with your MacBook Pro.

Removing or installing memory

Warning: the internal components of your MacBook Pro can get warm. If you’ve been using your MacBook Pro, wait 10 minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the bottom case

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, USB cables, security lock and any other cables connected to the MacBook Pro to prevent damaging the computer.

2. Turn over your MacBook Pro and remove the 10 screws that secure the bottom case. Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place. Lift off the case and place it to the side.

   

3. Touch a metal surface inside the computer to discharge any static electricity from your body.

   

Step 2: Remove existing memory (if present)

1. Push the levers on the sides of the memory module in an outwards direction to release the module from the memory card slot. The memory will pop up at an angle. Before removing it, make sure you find the half-circle notches. If you can’t, try pressing the levers outwards again.

2. Hold the memory module by its notches and remove it from the slot.

3. Remove the other memory module.

   Important: hold the memory modules by their edges; do not touch the gold connectors.

Step 3: Install memory

1. Align the notch on the gold edge of the module with the notch in the bottom memory slot.

2. Tilt the card and push the memory into the slot.

3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when the memory has been inserted correctly.

4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it’s level.

   

   Note: make sure you install the memory with the gold contacts inserted almost completely into the connector as per the illustration below.

Step 4: Replace the bottom case

Replace the bottom case. Replace and tighten the 10 screws you removed earlier, making sure you put the different length screws in their correct locations.

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Applicable Models

The instructions provided below are for the following MacBook Pro 15-inch models:

• MacBook Pro (15-inch, Mid 2012)

• MacBook Pro (15-inch, Late 2011)

• MacBook Pro (15-inch, Early 2011)

• MacBook Pro (15-inch, Mid 2010)

• MacBook Pro (15-inch, 2.53 GHz, Mid 2009)

• MacBook Pro (15-inch, Mid 2009)

Memory specifications

Please use the tables below to confirm the memory being installed is compatible with your MacBook Pro.

Removing or installing memory

Warning: the internal components of your MacBook Pro can get warm. If you’ve been using your MacBook Pro, wait 10 minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the bottom case

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, USB cables, security lock and any other cables connected to the MacBook Pro to prevent damaging the computer.

2. Turn over your MacBook Pro and remove the 10 screws that secure the bottom case. Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place. Lift off the case and place it to the side.

   

3. Touch a metal surface inside the computer to discharge any static electricity from your body.

   

Step 2: Remove existing memory (if present)

1. Push the levers on the sides of the memory module in an outwards direction to release the module from the memory card slot. The memory will pop up at an angle. Before removing it, make sure you find the half-circle notches. If you can’t, try pressing the levers outwards again.

2. Hold the memory module by its notches and remove it from the slot.

3. Remove the other memory module.

   

Important: hold the memory modules by their edges and do not touch the gold connectors.

Step 3: Install memory

1. Align the notch on the gold edge of the module with the notch in the bottom memory slot.

2. Tilt the card and push the memory into the slot.

3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when the memory has been inserted correctly.

4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it’s level.

   

   Note: make sure you install the memory with the gold contacts inserted almost completely into the connector as per the illustration below.

Step 4: Replace the bottom case

Replace and tighten the 10 screws you removed earlier, making sure you put the different length screws in their correct locations.

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Applicable model

The instructions provided below are for the following MacBook Pro 15-inch models:

• MacBook Pro (15-inch, Late 2008)

Memory specifications

Please use the table below to confirm the memory being installed is compatible with your MacBook Pro.

Removing or installing memory

Warning: the internal components of your MacBook Pro can get warm. If you’ve been using your MacBook Pro, wait 10 minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the access door

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, security lock and any other cables connected to the MacBook Pro to prevent damaging the computer.

2. Turn over your MacBook Pro and locate the latch. Push down to release the latch and remove the access door that covers the battery and hard drive.

3. The latch must be in its released, open position to remove the access door.

   

Step 2: Remove the battery

With the latch still in its open position, pull up on the tab gently to remove the battery.

Step 3: Remove the bottom case

1. Remove the eight screws that secure the bottom case of your MacBook Pro, and then remove the bottom case.

   Important: because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place.

   

2. Touch a metal surface inside the computer to discharge any static electricity from your body.

   

Step 4: Remove existing memory (if present)

1. Push out the ejection levers on the sides of the memory module to release the module from the memory card slot. The memory will pop up at an angle. Before removing it, make sure you find the half-circle notches. If you can’t, try pressing the ejection levers again.

2. Hold the memory module by the notches and remove it from the slot.

3. Remove the other memory module.

   Important: hold the memory modules by their edges; do not touch the gold connectors.

   

Step 5: Install memory

1. Align the notch on the gold edge of the module with the notch in the bottom memory slot.

2. Tilt the card and push the memory into the slot.

3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when the memory has been inserted correctly.

4. Repeat, if necessary, to install an additional memory module in the top slot. Press down on the module to make sure it’s level.

   Note: make sure you install the memory with the gold contacts inserted almost completely into the connector as per the illustration below.

   

Step 6: Replace the bottom case

Replace the bottom case. Replace and tighten the eight screws.

Step 7: Replace the battery

To replace the battery, make sure the latch is in its open position. Hold the battery at an angle and slide the lipped edge of the battery below the brackets on the outside edge of the battery bay. Press the battery down gently.

Step 8: Replace the access door

With the latch in the open position, replace the access door – making sure it’s level with the bottom case of your MacBook Pro – then press the latch into the closed position.

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Applicable models

The instructions provided below are for the following MacBook Pro 17-inch models:

• MacBook Pro (17-inch, Late 2011)

• MacBook Pro (17-inch, Early 2011)

• MacBook Pro (17-inch, Mid 2010)

• MacBook Pro (17-inch, Mid 2009)

• MacBook Pro (17-inch, Early 2009)

Memory specifications

Use the tables below to confirm the memory being installed is compatible with your MacBook Pro.

Removing or installing memory

Warning: the internal components of your MacBook Pro can get warm. If you’ve been using your MacBook Pro, wait 10 minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the bottom case

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, USB cables, security lock and any other cables connected to the MacBook Pro to prevent damaging the computer.

2. Turn over your MacBook Pro and remove the 10 screws that secure the bottom case. Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place. Lift off the case and place it to the side.

   

3. Touch a metal surface inside the computer to discharge any static electricity from your body.

   

Step 2: Remove existing memory (if present)

1. Push the levers on the sides of the memory module in an outwards direction to release the module from the memory card slot. The memory will pop up at an angle. Before removing it, make sure you find the half-circle notches. If you can’t find the notches, try pressing the levers outwards again.

2. Hold the memory module by its notches and remove it from the slot.

3. Remove the other memory module.

   Important: hold the memory modules by their edges; do not touch the gold connectors.

   

Step 3: Install memory

1. Align the notch on the gold edge of the module with the notch in the bottom memory slot.

2. Tilt the card and push the memory into the slot.

3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when the memory has been inserted correctly.

4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it’s level.

   Note: make sure you install the memory with the gold contacts inserted almost completely into the connector as per the illustration below.

   

Step 4: Replace the bottom case

Replace the bottom case. Replace and tighten the 10 screws you removed earlier, making sure you put the different length screws in their correct locations.

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Applicable models

The instructions provided below are for the following MacBook Pro 15-inch and 17-inch models:

• MacBook Pro (17-inch, Late 2008) and earlier

• MacBook Pro (15-inch, Early 2008) and earlier

Memory specifications

Please use the tables below to confirm the memory being installed is compatible with your MacBook Pro.

Refer to this table for the maximum amount of memory that can be recognised by these laptop computers:

Removing or installing memory

You will need to remove the battery before installing additional memory and reinstall the battery after installing the memory. The following procedure includes all of the necessary instructions for both parts of the process.

Warning: the internal components of your MacBook Pro can get warm. If you’ve been using your MacBook Pro, wait 10 minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the battery

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable and any other cables connected to the MacBook Pro to prevent damaging the computer.

2. Turn the computer over.

3. Locate the battery release latches on each side of the battery.

4. Slide both latches up. The battery should pop up slightly.

5. Lift the battery out.

Step 2: Remove the memory door

1. Using a Phillips size 00 screwdriver, unscrew the memory door and remove it from the battery bay of your computer. Depending on the model of your MacBook Pro, you may have three or four screws.

   

2. Touch a metal surface inside the computer to discharge any static electricity from your body.

   

Step 3: Remove existing memory (if present)

If you need to remove a memory card – for example, if you’re replacing it or if you need to get past the memory in the top slot to access the bottom slot – you can remove the card by spreading the tabs on each side of the card away from the notches in the memory card. The card should pop up slightly. Lift the memory card to about a 25-degree angle and then slide the card out of the memory slot gently.

Important: hold the memory modules by their edges and do not touch the gold connectors.

Step 4: Install memory

1. Insert the new memory card at a 25-degree angle. Line up the notch in the card with the small tab in the memory slot and slide the card into the slot until the gold edge is almost invisible. Press the memory card into the memory slot firmly. You may feel some resistance.

2. Gently spread the small tabs in the memory slot away from the notches and push the memory card down until the two tabs on either side of the card lock into place.

3. Insert any additional memory into the second slot.

   Note: make sure you install the memory with the gold contacts inserted almost completely into the connector as per the illustration below.

   

Step 5: Replace the memory door

Replace the memory door, and make sure the door is lying flat before you screw it back into place.

Step 6: To insert the battery

1. Place the bottom edge of the battery into the battery compartment at an angle, as shown below.

2. Press the top edge of the battery down gently until the battery latch locks into place.

   

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Learn more

Checking that your computer recognises the new memory

After installing additional memory, you should confirm that the computer recognises the new memory. To check the computer’s memory:

1. Start up your computer.

2. When you see the Mac OS X desktop, choose the Apple () menu from the top left-hand menu bar, then choose About This Mac.

The total memory includes the amount of memory that originally came with the computer plus the new memory you’ve added or, if all of the memory has been replaced, the new total for that memory. For detailed information about the amount of memory installed in your computer, open System Profiler by choosing Apple () and then About This Mac. Then click More Info and then Memory from the Hardware section that appears in System Profiler.

If your computer doesn’t recognise the memory or doesn’t start up correctly, confirm that the memory you’ve installed is compatible with your MacBook Pro and that it’s installed correctly by reseating the memory.