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L'aggiornamento della memoria RAM garantisce un notevole aumento della velocità.

  1. Rimuovi le dieci viti seguenti:
    • Rimuovi le dieci viti seguenti:

    • Tre viti con testa a croce Phillips #00 da 14,4 mm

    • Tre viti con testa a croce Phillips #00 da 3,5 mm

    • Quattro viti con testa a croce Phillips #00 da 3,5 mm con spallamento

    • Quando sostituisci le viti più piccole, allineale perpendicolarmente alla lieve curvatura del case (non vanno giù verticalmente).

    How much weight can I save by removing the optical drive?

    gunes314 - Replica

    You can save a lot of weight if lets say your installing a solid state drive or putting in a second hard drive but if you know that you use the CD/DVD disc drive a lot then you might just want to leave the drive alone.

    Marshall WahlstromHelgren -

    Tip: Use one of those weekday pill holders to have a cheep way to store screws you remove and each day of the week can be for different sizes or parts. It has been handy to have (much less expensive than the magnetic mat.

    Robert Wacker - Replica

    Hello, where can I buy the screws I need in case I lose one of them?

    taylornya - Replica

    I have one stripped screw... How opening without drill it?! Any suggestions please?

    rodrigosady - Replica

    I also stripped a couple screws. I wasn’t able to open it up without drilling. After drilling the heads and removing the cover it was easy to hacksaw the tip and unscrew with a standard driver.

    Michael Wilkens -

    My top tip - make sure you buy good quality Phillips screwdrivers and a magnetic holder. Cheap screwdrivers won’t get the screws undone safely. Without a magnetic holder you have no chance of getting the tiny crews in and out safely.

    jeremyyoung - Replica

    A good Phillips 00 is your friend here. Also, when reinserting the screws, gently start anticlockwise and you wil feel a click at the start of the thread. This tells you you’re in the right place and less likely to cross-thread through force in the wrong place.

    Iain Boyd - Replica

  2. Usa le dita per rimuovere il case inferiore dal corpo del MacBook, in prossimità della presa d'aria. Rimuovi il case inferiore.
    • Usa le dita per rimuovere il case inferiore dal corpo del MacBook, in prossimità della presa d'aria.

    • Rimuovi il case inferiore.

  3. Usa l'estremità di uno spudger per rimuovere il connettore della batteria dal suo zoccolo sulla scheda logica. Potrebbe essere utile fare leva verso l'alto su entrambi i lati del connettore, per agevolarne l'estrazione.
    • Usa l'estremità di uno spudger per rimuovere il connettore della batteria dal suo zoccolo sulla scheda logica.

    • Potrebbe essere utile fare leva verso l'alto su entrambi i lati del connettore, per agevolarne l'estrazione.

    Is this step of removing the battery connector required?

    manodh - Replica

    yes - as with disassembly of any electronic component you have to remove any power source. You don't want to accidentally turn the Mac on

    khull -

    Prying the battery connector off does not take much force. I did exactly what the guide suggested (walked it off back and forth) with the spudger without any problems. Just be very gentle, much like with anything inside laptops, they are very fragile and need to be worked with carefully. A+ instructions, battery replacement was a success.

    aekinaka - Replica

    Be patient on disconnecting this one. It worked for me step by step, little by little.

    Phil Wagner - Replica

  4. Piega leggermente il cavo della batteria per allontanarlo dal connettore femmina sulla scheda logica, affinché non venga collegato accidentalmente durante le operazioni.
    • Piega leggermente il cavo della batteria per allontanarlo dal connettore femmina sulla scheda logica, affinché non venga collegato accidentalmente durante le operazioni.

    I put some tape between the connector and socket while working on the drive.

    Stephen Smith - Replica

    That's a good tip

    Anrothan -

    Great tip, I did that too

    Ahmed Mahran -

    One other note: The screw heads fit flush with the curvature of the case -- which means that they aren't exactly horizontal. In other words, they aren't perpendicular to the table that the computer is resting on. Don't try to force them straight in vertically, because you'll risk cross-threading them. (nearly ruined one screw hole myself!)

    lelandjordon - Replica

    On my MacBook Pro, the connector seems to be an integral part of the battery.

    Jerry South - Replica

  5. Tira le due linguette di fissaggio della memoria RAM dal centro del modulo. Il modulo di memoria RAM dovrebbe sganciarsi leggermente dal connettore.
    • Tira le due linguette di fissaggio della memoria RAM dal centro del modulo.

    • Il modulo di memoria RAM dovrebbe sganciarsi leggermente dal connettore.

  6. Estrai il modulo RAM dalla sua sede.
    • Estrai il modulo RAM dalla sua sede.

    • Ripeti la procedura per rimuovere il secondo modulo RAM.

    After replacing the RAM my macbook did not start anymore. Only if I take out one Ram it works. Does anyone knows why.

    joelcroese - Replica

    Hello Joelcroese, have you a issue about your problem, because i have actually this problem ? ... Thanks for your feed back.

    Remy Duprat -

    Make sure both your RAM chips are running at the same speed - don't know about the Macbook but it will cause other machines to not recognize the RAM at all or only pick up one stick -

    melindaruth -

    Is the channel configuration of your ram sticks correct? Mac needs 9-9-9-24 channel configuration. Something like Corsair Mac Memory or the kit that iFixit provides are in the correct channel configuration.

    Seji the veggie - Replica

    Just to point out:

    1. Do not press again the locker.

    2. Changed the bottom RAM first.

    3. Put nicely, gently to the slot. Cue for you. You must see the label of the manufacture.

    4. Close everything.

    5. Switch the Mac and check "Finder>About my Mac" show the correct RAM.

    Jay Nandu - Replica

    Thank you, Phillip! I have now (just recently) used FOUR of your guides—1) HARD-DRIVE replacement, 2) hard-drive CABLE replacement, 3) BATTERY replacement, and 4) RAM upgrade installation—to successfully refurbish my daughter’s late-2011, 13.3-inch MacBook Pro and, thereby, hopefully, add a few more years to its useful life. Thanks, again!


    Garrick de Demeter

    gdedemet - Replica


Per riassemblare il dispositivo, seguire le istruzioni in ordine inverso.

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iFixit Membro di iFixit


133 Membri

14.635 Guide realizzate

My mid-2012 2.5 i5 works perfectly with 16 Gb of 1600Mhz DDR3.

nix - Replica

Just replaced my 4GB with 16GB of PNY from Best Buy. AWESOME difference in performance!!

Michael Chandler -

Could you please specify the memory chip that you bought? I need more details in order to get the right one, thanks!

Lin -

Any memory kit that is either validated by Apple or that has the proper channel configuration (9-9-9-24) is okay to use. If you are looking for pure performance RAM, a kit of Corsair Vengeance RAM is okay to use (again, check the channel configuration), but most people will benefit from a kit of Corsair Mac Memory or the kit that iFixit provides in the volume of your choice.

Seji the veggie -

Please note that the Apple says that this MacBook pro is using 1600MHz DDR3 memory. Instructons suggestinf an old memory for some reason.

Serhiy - Replica

how to know my macbook pro 13inch mid !!!

essa - Replica

Great learning tutorial, it helps me in upgrading the RAM of my Mid 2012 MacBook Pro 13" Unibody that too without the help of technical person. All I was needed to follow the steps one by one and I got success. Thanks iFixit staff for making my MacBook ready in 25 minutes.

Harry Bronson - Replica

IThis great I actually added 16GB ram into mine. I purchased from bestbuy. Got a great deal! They price match!

irishsushi - Replica

7 December 2015: Successfully used this guide on my new BTO Mid 2012 i7 13" - really nice to have this tutorial up on my iMac while I did this - nice to "check off" the steps.

I remembered from somewhere that one at least used to have to reset the PRAM/SMC, but, it recognized the new RAM amount of 16 glorious GB with no problem.

I think disconnecting the battery had the same effect, as the Date reverted not quite to 1969 - that also updated with no problem.


Carrick - Replica


There is a photo of inside of lower case?

i buy second-hand mbp mid 2012 13" with 16 Gb RAM, and HWMonitor shows memory module 1 temp around 75 - 77 celsium, who is a bit too high, i think.

open lower case, clean off dust, and see on a lower case inside, in place, where is memory modules, is additional insulation foam layer. dont know - that is from apple, or previous owner put that on its own?

in any case 77 celsium on memory is too high temp, i think. have also 2011 late mbp 13" also with 16 Gb ram, and there typical temp on mem module 1 shows about 52 -55 celsium - almost as half lower than on mid 2012....

john - Replica

can we change from 4 gb ram to 8gb ram??

umeshchandan34 - Replica

I just changed out my RAM chip with 8 GB chip bought from you. It was very easy with your guide to follow. The employes I talked with were very knowledgable and helpful. Thank you

Craig Hail - Replica

So because Apple insists on a single-piece bottom, I can't just twist one screw to replace the RAM.

Dave - Replica

Je viens d'installer mes deux barrettes de G.Skill 4GOx2 en remplacement des mes barrettes ELPIDA d'origine. Merci à IFixit pour ce tutoriel très clair, j'ai mis une heure au total (30 minutes de montage et 30 minutes de nettoyage après 6 ans et demi!). Je suis très satisfait de ce tuto. Thanks IFixit!

Loy - Replica

My mid-2012 13” says it has 4GB RAM and I want to upgrade to 8GB. Do I need to get 2 X 4GB or just 1 X 8GB? If I get just 1 X 8GB can I leave the old RAM in the 2nd slot?

Mark Chandler - Replica

You can add a 8GB along with your existing 4GB, taking the total to 12GB. You can also add just one 4GB, taking the total to 8GB.

galuano1 -

For many people it is worth cleaning out the muck & “belly button” fluff from the fan while you are in there. Adds on another 10 mins to the job and does wonders for the cooling system. Cheaper to clean the fan than to replace burned out boards etc

Hay rack - Replica

Salve. Ho installato questa mattina l’espansione di memoria Ram da 16 GB (2x8) sul MacBook Pro Unibody da 13", versione metà 2012.

Crucial CT2KIT102464BF160B Kit Memoria da 16 GB (8 GBx2), DDR3L, 1600 MT/s, PC3L-12800, SODIMM, 204-Pin. Totale EUR 136,99

FANTASTICO!!! Un’altra macchina!!!…Acqusito da fare assolutamente.

Enzo Rizza - Replica

caspita, sono contenta per te, invece io ho installato 2x8GB come te e il sistema riconosce solo 10GB, cioè 8 + 2, quindi di uno slot riconosce solo 2GB. Il risultato è che è cambiato proprio poco in fatto di prestazioni, anche perché avere le slot diverse credo sia un handicap.

hai qualche consiglio da darmi? grazie ciao

mariatrucchi -

what is the maximum RAM can be installed in macbook pro 13” mid 2012? is 2x8GB the maximum?

indigo_f1ow - Replica

That is what I have been told, yes.

Tonje Ailin Solheim -

I just upgraded my Mid-2012 Non-Retina MBP (2.9GHz i7, 750GB@5400RPM) from 2x 4GB DDR3-1600 to 2x 8GB DDR3-1600. So far it works flawlessly and I am about to upgrade the hard drive in it to a 1TB SSD. I am installing Crucial memory and their MX500 SSD.

Rahul Katre - Replica

Excelente cambie a dos dimm ddr3-1600 de 8 GB cada una y me subio a 16 GB el maximo teorico. Gracias

roberto - Replica

what the max ram you can put inside

owen wint - Replica

I think 16gb. I haven’t read/heard anywhere about going higher.

Mario -

Well, it’s 2019 and I just did this to my old 2012. It was quite easy. Reading comments I realized the main concern regarding disconnecting the battery is to avoid frying the motherboard by accidentally touching areas with something conductive and I agree.

The first re-boot showed only one bay in use and I had to check and found out I didn’t push the top memory card hard enough but once I fix this hiccup and re-booted again I saw the new 16gb and my loving MacBook Pro comes to life so fast!

Mario - Replica

I have bought 2x4GB Ram, a kit of 8GB for my mac. I see that someone here is replacing with 16GB, how is that when I’ve read there is a maximum of 8 to be used on this machine?

Tonje Ailin Solheim - Replica

Merci! Les marches à suivre sont claire et très bien faites. La livraison du matériel commandé sans faille.

En démontant le fond du MacBook j’ai vu qu’il manquait une vis, peut-on en acheter (Lors d’une prochaine commande) ?

jpmoll - Replica

In 2015 I replaced RAM with 2 X 8 GBKIT DUAL CHANNEL SO-DIMM DDR3 PC12800 (CT2C8G3S160BMCEU).

Works fine, but since, each time my MBP goes in “standby” mode (when unpluged or closed) this one doesn’t not awake, need to turn it off (by holding off button for a few seconds) and restart it !

I also test my RAM (memtest, plus alternativly test one by one 8GB + hibernate / standby-> awaking is OK)

Since i also upgrade HDD with a SSD and problem is not solved. I tried several things I found from some people who encountered the same issue, but my “standby mode" problem is still there in 2019. (In fact it seems I was not able to change the hibernate image size, this one is always 8GB).

My MBP is running under macOS Mojave (10.14), I also encountered with other versions of macOS from the first that was installed (Yosemite)

Does some one here found a solution ?

Fabrice D. - Replica

hallo, I replaced my 4GB with 16GB but the difference in performance was not significant. I see the macbook recognize only 10GB (8+2). So either are recognized but only one is used in full. Could you suggest me how to have 16GB recognized and used? thank you

mariatrucchi - Replica

you should check the ram you put in , maybe broken or one no good.

David Schoenoff -

Do you guys think the following would be ok to upgrade with:

Ta. :)

Steven Emery - Replica

I just upgraded my RAM from 4GB to 16, and I don’t even recognize this computer. The difference in performance is so off the charts it’s like having a new computer. I’d intentionally gone for an older model because there certain components I needed to work remotely, and had been really regretting my decision. Now the only thing I’m upset about is how long I waited. Thank you for the clear and detailed guide on how to do this.

Jayce Ellis - Replica

I broke one of the levers to hold the RAM in the slot. whre can I purchase the levers online?

tinouch - Replica

hola señor soy sorderas pregunta yo estudias tiene duda por macbook pro 13 2012 hace como poner tema duro disco HD cambio SSD como paso debe instala por favor enseñar relación por eso y antes estudia youtube empeza como instala debe usb instala o copia seguridad mejor para facil o forma cual?? muchas gracias privado contigo email si no

Alejandro Torrico Barberan - Replica

Just ordered mine from IFIXIT. Arriving today. Hopefully its not going to be as sluggish. Will update once I installed the RAM

Gary Gregorio - Replica

So i got my 2 8 GB ram and installed it in 5 minutes. Laptop runs very fast now like its nearly new. Thank you ifixit. Next up is battery, then hard drive. Going to save up for those two.

Gary Gregorio - Replica

Merci pour cette aide à l’installation des barrettes mémoire très explicite et bien documentée par les photos. Parfait !

Boulay - Replica

I’m confused by looking at all the RAM available on Amazon India. Some are DD3, some are DDR3 L. Other mention UNBUFFERED.

All i want to know is which is compatible with my MACBOOK PRO 13” Intel i5 Mid 2012 model and how much max it can support 8 GB or 16 GB?

Will there be a drastic difference in speed and performance between 8 and 16 GB upgrade or not much, as Graphic card is the same. I want to use it for video editing and rendering mostly not 3D rendering.

* I checked on Apple website and i think it said 8 GB is max fro my Core i5 model and so i think 16 GB is for Core i7 model.

Please help!


jaskiran singh - Replica

I have the core i5 model, and have upgraded to 16GB since 2013, and it has been nice ever since. Take a look at this, which tells exactly what will fit in your mac. Unbuffered is fine, and most entries in Amazon India will do just fine. eg. and

galuano1 -

ram done today, easy and better performance with 16 gb , two 8 gb sticks, much better then four.

next week , ssd to be replaced , buy a tool remove fan and clean same time.

thank you very much, the instructional videos .

David Schoenoff - Replica

Has anyone had one of their ram slots go bad? It would randomly crash, a process of elimination determined which slot is bad.

That happened to me, I only have one slot filled with a 4gb stick. It works fine for me, occasionally it rams out as I call it.

rosstravis - Replica

ive just replaced my old 2x4gb with 2x8gb (16gb) and my mac is now making a very hight pitched but quiet background noise, im guessing from the power draw or something? is theyre anyway to make this stop?

Clemens Weileder - Replica

I’m a little confused here. I red somewhere (apple support) that this model is topes to a max o 8gb in ram but many people claim to uograde to 16, is this correct?

Wytchkraft - Replica

The laptop actually supports upto 16GB, however Apple sold it with a max of 8GB, and that's what they supported. I myself have it upgraded to 16GB since 2013, and it works fine. Crucial’s site documents it too

galuano1 -

Well, thanks for the advice @galuano1 it seems like bad timing to have read this 3 days after my 2x4GB RAM upgrade arrived! But for now my MBP goes just fine with 8GB. But now I have the 16GB upgrade in mind!

Wytchkraft -

2021 Jan. 30: I just installed 2 x 8GB RAM (16GB total) in my 13” mid-2012 MacBook Pro (“MBP”), to replace the 2 x 2GB RAM that came in it. An apple tech (“Advisor”) told me that his tech notes at Apple say that my MBP does support 16GB RAM, and after a few minutes of testing with the new RAM, the MBP works significantly faster (from a little bit, to lots, depending on the app or function) :-)

I bought the 2 new 8GB RAM modules/”sticks” that I installed from Best Buy, and they are PNY brand, model #MN8GSD31600LV (DDR3, 1600MHz, 1.35V, CAS 11), at $40 each ($80 + tax, total).

Ted - Replica

Dear SIr, I followed the apple tuorial to change the ram of my early2011 Macbookpro. It is not specified to disconnect the battery. Now the machine does not start, even if I replace the old ram. Is there any trick(I already tried the SMC reset using shift+ctrl+option + power 10s , unfortunately it did not work)

Pierre Panine - Replica

Dear Madam, dear Sir, I followed the apple tutorial to change the ram of my early2011 Macbookpro.Unlike in iFixit tuto, it is not specified to disconnect the battery prior RAM removal/installation. Now the machine does not start, even if I replace the old ram.

Mac does not react anymore, magsafe is not even recognised

I already tried the SMC reset using shift+ctrl+option + power 10s , unfortunately it did not work.

Is there any trick?

I had to proceed to dust removal, do you believe I generated some shortcuts somewhere or the fact that I removed the ram without disconnecting battery is the main issue?

Pierre Panine - Replica

I solved the issue: Opened again the mac. Disconnected the battery. connected the magsafe charger. restart mac. close the mac without stop it. wait the fan stop. reconnect the battery. Connect the magsafe, now it works back as before

Pierre Panine -

Just upgraded by 4GB to 16GB RAM with the toolkit I bought from iFixit.

It was my first ever Mac repair/upgrade, but thanks to the detailed step-by-step guide and the repair kit it went like a breeze.

very happy with the result, next is upgrading my old HDD with SSD

Armen Tiraturyan - Replica

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