The Power Mac, iBook, and PowerBook brands were retired during the transition; the Mac Pro, MacBook, and MacBook Pro became their respective successors. On April 29, 2009, The Wall Street Journal reported that Apple was building its own team of engineers to design microchips. Specifically, as discovered by OWC, the 13-Inch 'Mid-2010' MacBook Pro models (and only the 13-Inch models) - the MacBook Pro 'Core 2 Duo' 2.4 13' Mid-2010 and 'Core 2 Duo' 2.66 13' Mid-2010 identified by MacBookPro7,1- can support up to 16 GB of RAM with dual 8 GB memory modules if they are running OS X 10.7.5 or higher, have been updated to.

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

Once you're sure which model you have, find it in the list below to go to the instructions for that model. Note: Apple notebooks 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 be warm. If you have been using your MacBook Pro, wait ten 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 ten (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 outward direction to release the module from the memory card slot. The memory pops up at an angle. Before removing it, make sure you find the half-circle notches. If you don’t, try pressing the levers outward 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 lower 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 you insert the memory correctly.
4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it is level.
   Note: Make sure you install the memory according to this illustration, with the gold contacts inserted almost completely into the connector.

Step 4: Replace the bottom case

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

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, 2.53GHz 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 be warm. If you have been using your MacBook Pro, wait ten 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 ten (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 outward direction to release the module from the memory card slot. The memory pops up at an angle. Before removing it, make sure you find the half-circle notches. If you don’t, try pressing the levers outward 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 lower 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 you insert the memory correctly.
4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it is level.Note: Make sure you install the memory according to this illustration, with the gold contacts inserted almost completely into the connector.

Step 4: Replace the bottom case

Replace and tighten the ten screws you removed earlier, making sure to put the different length screws in their proper locations.

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 be warm. If you have been using your MacBook Pro, wait ten 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 cords 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, gently pull up on the tab 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 pops up at an angle. Before removing it, make sure you find the half-circle notches. If you don’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 lower 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 you insert the memory correctly.
4. Repeat, if necessary, to install an additional memory module in the top slot. Press down on the module to make sure it is level.
   Note: Make sure you install the memory according to the illustration below, with the gold contacts inserted almost completely into the connector.
   

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. Gently press the battery down.

Step 8: Replace the access door

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

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 be warm. If you have been using your MacBook Pro, wait ten 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 ten (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 outward direction to release the module from the memory card slot. The memory pops 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 outward 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 lower 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 you insert the memory correctly.
4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it is level.
   Note: Make sure your memory is installed according to the illustration below, with the gold contacts inserted almost completely into the connector.

Step 4: Replace the bottom case

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

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 recognized by these notebook 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 the necessary instructions for both parts of the process.

Warning: The internal components of your MacBook Pro can be warm. If you have been using your MacBook Pro, wait ten 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 cords 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 are 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 gently slide the card out of the memory slot.
Important: Hold the memory modules by their edges; 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. Firmly press the memory card into the memory slot. You might 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 according to the illustration below, with the gold contacts inserted almost completely into the connector.
   

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. Gently press the top edge of the battery down until the battery latch locks into place.
   

Learn more

Checking that your computer recognizes the new memory

After installing additional memory, you should confirm that the computer recognizes 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 upper-left 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 added, or if all 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 recognize the memory or doesn’t start up correctly, confirm that the memory you installed is compatible with your MacBook Pro and that it is installed correctly by reseating the memory.

Unibody MacBook Pro Q&A

Update Published May 10, 2016

All Mac Q&As >>Unibody MacBook Pro Q&A | Also See: All MacBook Pro Specs

To be notified of new Q&As, sign up for EveryMac.com's bimonthly email list.

If you find this page useful, please Bookmark & Share it. Thank you.

How do you upgrade the RAM in the 'Mid-2009' through 'Mid-2012' MacBook Pro models? What type of RAM do they use? How much RAM does each model actually support?

Please note that this Q&A is up-to-date and covers pre-Retina 'Unibody' MacBook Pro models. EveryMac.com also provides details about RAM options for the subsequently introduced Retina Display MacBook Pro line.

The RAM upgrade procedure for the 'Mid-2009,' 'Mid-2010,' 'Early 2011,' 'Late 2011' and non-Retina Display 'Mid-2012' MacBook Pro models is fairly easy. It's not quite as easy as it is for earlier 'pre-Unibody' MacBook Pro systems, as these later models require a screwdriver, but it still is simple and straightforward.

Photo Credit: Apple, Inc. ('Unibody' MacBook Pro Models)

Identification Help

If you're not sure which MacBook Pro you have, these models can be identified by the Model Identifier 'closely enough' to an exact match for the purpose of upgrading the RAM. In turn, each model can be uniquely identified via model identifier and one or more secondary identifiers (like processor speed and/or processor type).

EveryMac.com's Ultimate Mac Lookup feature -- as well as the EveryMac app -- also can uniquely identify these models by the Serial Number, which is listed on the bottom of the notebook in small type toward the hinge, as well as within the operating system alongside the model identifier. More details about specific identifiers are provided in EveryMac.com's extensive Mac Identification section.

To locate the model identifier in software, select 'About This Mac' under the Apple Menu on your computer and click the 'More Info...' button. If the MacBook Pro is running OS X 10.7 'Lion' or later, you will need to click the 'System Report' button after clicking 'More Info...' as well. EveryMac.com has carefully hand documented each model identifier for your convenience.

The model identifiers for each of these models follow:

RAM Types & Actual Maximum RAM Capacities

All of these systems have two memory slots that are accessible by removing the bottom case, but the type of RAM as well as the actual maximum capacity varies for different models. Apple formally recommends that you 'fill both memory slots and install an identical memory module in each slot' for all of these systems.

The 'Mid-2009' and 'Mid-2010' MacBook Pro models support 1066 MHz PC3-8500 DDR3 SO-DIMMs and officially and unofficially support a maximum of 8 GB of RAM with one odd exception.

Specifically, as discovered by OWC, the 13-Inch 'Mid-2010' MacBook Pro models (and only the 13-Inch models) -- the MacBook Pro 'Core 2 Duo' 2.4 13' Mid-2010 and 'Core 2 Duo' 2.66 13' Mid-2010 identified by MacBookPro7,1 -- can support up to 16 GB of RAM with dual 8 GB memory modules if they are running OS X 10.7.5 or higher, have been updated to use the latest EFI, and are equipped with proper specification memory modules. If running a version of Mac OS X 10.6 'Snow Leopard,' these models only can use 8 GB of RAM.

The 'Early 2011' and 'Late 2011' MacBook Pro models use faster 1333 MHz PC3-10600 DDR3 SO-DIMMs. They officially support 8 GB of RAM, but OWC has determined that they actually support 16 GB of RAM regardless of the operating system installed, although only the 'Early 2011' MacBook Pro models are capable of running a version of Mac OS X 10.6 'Snow Leopard.'

Finally, the 'Mid-2012' non-Retina Display MacBook Pro models use faster still 1600 MHz PC3-12800 DDR3 SO-DIMMs and likewise officially support 8 GB of RAM, but actually can support as much as 16 GB of RAM. These models do not run versions of OS X prior to OS X 10.7 'Lion.'

Much like the identification help, these details are easiest to visualize as a chart:

† Officially, these two models support 8 GB of RAM, but they actually can support 16 GB of RAM. However, this is if and only if they are running OS X 10.7.5 or higher, have been updated to use the latest EFI, and are equipped with proper specification memory modules.

* Officially, these models all support 8 GB of RAM, but they actually support 16 GB when running any compatible version of (Mac) OS X.

RAM Upgrade Instructions

Apple explains how to install memory starting on page 35 of the 13-Inch, 15-Inch, and 17-Inch 'Mid-2009', 13-Inch, 15-Inch, and 17-Inch 'Mid-2010,' and 13-Inch, 15-Inch and 17-Inch 'Early 2011' MacBook Pro User Guides, respectively, and this provides most of what you need to know to upgrade the pre-installed memory.

The 'Late 2011' MacBook Pro models are so similar to the 'Early 2011' models that Apple didn't bother to release an updated instruction manual. For the 'Mid-2012' MacBook Pro line, Apple's 'Quickstart' Guide does not cover RAM installation, but the procedure is the same as earlier models.

However, perhaps even better than drawings, OWC provides convenient step-by-step videos of the process for the 13-Inch, 15-Inch, and 17-Inch models alike.

13' MacBook Pro RAM Upgrade Video
Mid-2009, Mid-2010, Early 2011, Late 2011 & Non-Retina Mid-2012

15' MacBook Pro RAM Upgrade Video
Mid-2009, Mid-2010, Early 2011, Late 2011 & Non-Retina Mid-2012

17' MacBook Pro RAM Upgrade Video
Mid-2009, Mid-2010, Early 2011 & Late 2011

After watching these videos, it should be clear that upgrading the RAM is easy. However, if you do not feel comfortable -- or have the time -- to perform the upgrade yourself, hiring a professional always is a good option.

Macbook Pro Mid 2010 Os Upgrade Snowleapord

MacBook Pro RAM Purchase Options

Just because RAM meets the minimum listed criteria does not mean that it will necessarily function as intended in a particular Mac. Be sure to buy from a quality vendor that has tested their RAM with your Mac to ensure full compatibility.

In the US (and many other countries), site sponsor Other World Computing sells memory as well as storage for all MacBook Pro models for do-it-yourself upgrades.

Macbook Pro 2010 Os Version

In the UK and Ireland, site sponsor Flexx sells MacBook Pro compatible memory with free shipping. The company provides flat rate shipping to France, Germany, and Switzerland and inexpensive shipping for all of Europe, too.

In Canada, site sponsor CanadaRAM sells memory for all MacBook Pro models with guaranteed compatibility, fast shipping, and no customs.

In Germany, site sponsor CompuRAM sells quality memory for all MacBook Pro models with affordable delivery country-wide and in person pick up and professional installation service available in Munich.

In Australia, site sponsors Macfixit and Upgradeable sell MacBook Pro compatible memory with fast shipping, a money-back guarantee and more.

In New Zealand, site sponsor Upgradeable New Zealand sells MacBook Pro memory with fast delivery to all corners of the country, precise compatibility, a lifetime warranty, and a money-back guarantee.

Also see:

• How do you upgrade the hard drive in the 'Mid-2009' through 'Mid-2012' 13-Inch, 15-Inch, and 17-Inch MacBook Pro models? What type of hard drive do these models support? How do you replace the hard drive with an SSD?
• How do you replace the optical drive in the 'Unibody' MacBook Pro models with a hard drive or SSD? Is it possible?
  

Permalink | E-mail a Friend | Bookmark & Share | Report an Error/Typo

Suggest a New Q&A | Sign Up for Bimonthly Site Update Notices

<< Unibody MacBook Pro Q&A (Main) | Also See: All MacBook Pro Specs

EveryMac.com is provided 'as is' without warranty of any kind whatsoever. EveryMac.com, and the author thereof, shall not be held responsible or liable, under any circumstances, for any damages resulting from the use or inability to use the information within. For complete disclaimer and copyright information please read and understand the Terms of Use and the Privacy Policy before using EveryMac.com. Use of any content or images without expressed permission is not allowed, although links to any page are welcomed and appreciated.