Introduzione
Usa questa guida per sostituire l'SSD Blade originale di Apple (AHCI / PCIe x2).
Questa guida è destinata ai modelli iMac Intel 21,5EMC 2805 dotati di SSD.
Cosa ti serve
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Prima di iniziare a lavorare sull'iMac, scollega il computer dall'alimentazione e tieni premuto il pulsante di alimentazione per 10 secondi per scaricare i condensatori dell'alimentatore.
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Iniziare sulla parte sinistra del display, accanto al pulsante di alimentazione, inserire l'attrezzo per l'apertura dell'iMac nello spazio fra il pannello di vetro e il case posteriore.
Don’t get too worried about starting exactly where the picture says. The glue is stronger in some parts so just start wherever is easier and then work slowly and patiently around in the direction shown.
As this guide doesn’t cover replacing the adhesive strips, I found referring to the following was useful (noting that it’s not for the same model of iMac, so the modification they mention wasn’t necessary): Sostituzione strisce adesive iMac Intel 21.5" EMC 2544
This part of the exercise should be done with extreme patience. I took my sweet time with the opening tool, rolling it through the entire panel and enclosure gap over and over again, until I was very sure no parts were sticking together anymore. And when I thought I was I done, I decided to do it over again.
You can "warm up" the adhesive before try to cut it with the tool using a hair dryer. Heat the edges for about a minute, keep moving it so you don't cause stress in the glass. Also the above note.. use the tool and then the cards. Do not use a guitar pick or other objects as the thickness will cause you to break the front glass, which is a bonded part of the display (expensive).
Merci pour ce conseil
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Utilizzare l'attrezzo come una taglierina per la pizza: ruotarlo lungo lo spazio per tagliare la schiuma adesiva al centro.
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Far scorrere l'attrezzo lungo il lato sinistro del display.
If re-opening a screen that was opened and re-attached using iFixit’s adhesive strips, I would strongly recommend heating it first with an iOpener, heat gun or hair dryer. 20 minutes after attaching with the iFixit adhesive I tried to open it again with the pizza slicer to fix something and cracked the screen on the left-hand side.
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Continuare lungo la parte superiore del display.
In this step can I cut along the display without make any damage to the front camera?
Hi! Actually - there is no need to cut the tape around the camera area - there is no tape to cut at all! And so, the way go is easy - just pass 10 mm to the left and to the right from camera and start cutting!
P.S. Just did the whole procedure to replace a RAM and to add SSD on PSIe an hour ago! Seems to be different reading the instructions... you know - 2/10 and so on. But it's really not that hard, trust me. I'll give it 5/10.
P.P.S. By the way there is one trick to pass the difficult steps. Any action which requires pulling smth (motherboard, speaker, power supply unit) from the narrow crack (or should i say - slit?) at the bottom of your Imac is really not so easy.
And the trick is to first remove a thin metal stripe with some kind of insulation on it which held by 5 small (very small!!) screws at the bottom of your Imac. After you done it - it's easy to pull everything! Pay attention to the fact that one of this 5 screws at the center are more shortly than others.
If you're changing cracked EMC 2638 display to new assembly, there's two more steps:
Step 24: Use the tip of a spudger to flip up the metal retaining bracket on the display data cable.
Carefully pull the display data cable from its socket on the display assembly.
Step 25: Use the tip of a spudger to unplug bracket of the thermal sensor small cable near display data cable.
Carefully remove scotch tape covering thermal sensor. Using iSesamo or flat tip of the spudger carefully peel the thermal sensor away.
omg - forgot to switch the termal sensor from the old display...
now fan runs like crazy...
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Terminare l'applicazione dell'attrezzo per l'apertura nella parte inferiore del lato destro del display.
Yes, do it many times to loosen the adhesive.
Would be good data to show the 3 areas (wifi antennas where the "tape" is larger and covers them. The rest of the "tape" is 1.4" and easy. Also after removing the display, be sure to remove the old "tape" from both the display and the rubber parts of the case. Use the spudger to start an end and it should pull off easily. Careful on the baackside of the display as you can scratch off the black paint/covering.
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A partire dall'angolo superiore destro dell'iMac, inserire una scheda di plastica fra il display e il telaio.
this step is extremely important NOT to stick in the cards too far….. doing so, you risk a 600 euro replacement as I experienced………
I drew a 3/8” line on my cards with a marker first.
I’m reading this on the EU store, please change all measurements to cm/mm.
@ifixit The next batch of cards you create should have a line printed on the card 3/8” in from the edges. Would make a nice reference.
Better to remove stand wedge at this point? Can’t see from pics
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Ruotare delicatamente la scheda di plastica lateralmente per creare uno spazio fra il display e il telaio.
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Eseguire movimenti lenti, facendo attenzione a non fare troppa pressione sul vetro del display, poiché occorre solo uno spazio di circa 0,63 cm.
This part must be done very carefully or you can damage the flat cable from display, despite it was under a iron cover.
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Far scorrere la scheda verso il centro del display per tagliare il resto dell'adesivo lungo l'angolo destro dell'iMac.
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Usa delle pinzette per ribaltare la staffa in metallo che blocca il cavo dati del display.
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Sfila delicatamente il cavo dati del display dalla sua presa sulla scheda madre.
Does anyone know where to find a replacement display cable for the 2014?
PN: 923-00047
PBMedic is out of stock
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Prendi l'aletta all'estremità di una delle due strisce adesive inferiori dello schermo e tirala verso la parte superiore dell'iMac per rimuoverla.
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Ripeti questo passaggio con l'altra striscia e rimuovila.
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Se una delle due strisce si rompe prima che venga rimossa, usa una scheda di plastica per tagliare l'adesivo rimasto.
Anyone else notice this iMac is different than the one in Step 20. The cables are in different places. I just saw one on YT like this, in a different country.
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Rimuovi le seguenti cinque viti a croce Phillips che tengono in posizione la staffa di supporto inferiore:
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Quattro viti da 3,2 mm
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Una vite da 1,7 mm
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Rimuovi la staffa di supporto inferiore dalla custodia dell'iMac.
Of all the parts of this entire procedure, replacing this one piece is the hardest part! The screws are tiny and they just don’t seem to want to grab the support piece. Also it seems to perform no function which is also annoying.
I left mine out. LOL
Line up the screw holes and press on the bracket from the back to help the screws grab. If your fingers are too big, press with the flat side of your spudger. As long as there’s no gap between the bracket and the iMac’s frame, the screws should grab easily.
I put it in at a slight angle lining up the right hand side holes, screwed in the two screws and gently pressed my finger behind it on the rest
If you only want to replace the HD and RAM, take a big shortcut and leave the logic board in, as well as all the parts needed to remove it (speaker, power supply etc). Once the display is removed, just take out the fan and the top two logic board screw. There is than sufficient space to gently remove and insert the two ram modules. HD can easily be replaced with an SSD by just removing the HD mounting brackets...
Voces mudaram de modelo iMac, desta foto para proxima, esse modelo desta foto nao tem slot nvme. O da proxima foto sim. Voces me fizeram comprar un nvme por engano...
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Usa la punta di uno spudger per spingere su uno dei due lati del connettore del cavo dell'altoparlante per accompagnarlo fuori dalla sua presa sulla scheda logica.
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Rimuovi le seguenti viti che mantengono al loro posto le staffe di bloccaggio che fissano il disco rigido alla scocca posteriore:
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Due viti Torx T10 da 21 mm sulla parte sinistra della staffa del disco rigido.
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Una vite Torx T10 da 9 mm.
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Una vite Torx T10 da 27 mm.
Pay attention to this photo and where the fan is. It is 180° from where the previous step shows it is oriented to you.
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Usa la punta di uno spudger per spingere su un lato alla volta del connettore del cavo del tasto di accensione e scollegalo lentamente dalla sua presa.
I would advise that before removing the PSU unit and all other components from the bottom of the case that you remove the 5 screws at the bottom of the display which hold an insulation strip in place.
The guide shows this piece removed, but does not tell you how to remove it.
There will be 5, small J1000 screws. The middle one, which goes over Apple Logo is the shorter one of the 5, all others are the same length. Once this piece is gone removing the components is much easier, and chance of damage lessened.
Added to the guide. Thanks for the tip!
No need to remove power board and logic board and all other components, just remove the fan and it is quite "easily" accessable to change the RAM. Just need to use the tools to remove the old RAM and carefully install the new RAM.
I just did it without removing the logic or power board
could you elaborate a little more, I would love to skip the rest of these steps. How did you accomplish this?
ej P -
Oleksandr Trokhymchuk,
Thank you! You just saved me so much time! I wouldn’t call this “easy” but it saved me a lot of time and effort.
ej P: remove the fan assembly first. Then remove the connector that runs from the iSight camera to the logic board on the left.
the RAM is located right near that cable. It’s tricky to remove but you can pop open the connectors with a black nylon stick and the RAM chip will pop up at 45 degrees. Make a mental note on which way you will need to install the new ram as it’s tough to see. For the Crucial memory I got it was label side facing away you (facing towards rear metal enclosure).
the second chip has a plastic adhesive piece on it that you should probably attach to the new ram.
remove both chips then install the new ram in sequence from the board out.
In the photo for Step 28, the power button cable connector is placed around the power board screw hole on the top left of the power board.
However, on the iMac I upgraded, the power button cable connector was “fed” through the power power screw hole on the top left of the power board. The cable was too short to run around and below the hole.
Hence, I had to ensure the cable was “fed” through the hole during re-assembly and the screw carefully screwed back through the hole.
I guess every iMac is assembly just a bit differently, just to make repairs that much more fun.
This is not correct and may have been assembled incorrectly during a previous repair.
Just replaced the hard drive and RAM with SSD and 16GB respectively and did NOT remove the power supply or logic board. Tricky is a word to describe putting the RAM in without removing the logic board. You work in the dark with little room to get your fingers in between the logic board and the back of the case. I put the first RAM chip in without a problem (the one next to the logic board), but the second to four tries and dropped it behind the logic board three times before finally getting it to position correctly. Just impossible to see and must work but feel. Still it was faster than removing all the components… though did remove the fan (needed cleaning anyway). All in all I can’t say enough about the help the guide was through the upgrade ! Thanks !
I found this connector to be very tight and was afraid of breaking it off. I just kept slowly working on it—it did eventually come out.
I did try to sneak the RAM in without removing the logic board but my fingers were too big. I found it too difficult and just continued on with this guide.
I was not able to install the memory without removing all the components. My fingers are too big and I could barely get in that tight spot to swap out the memory. The hardest part about the power supply is that one connector under the chin next to the Apple logo. Once it is out, you are home free because it is so easy to plug it back in when you are putting it all back together again. Ridiculous that Apple did not put a simple access door behind those memory slots because they are on the backside of the Mac! They did an access door on the PowerBooks and it did not ruin the appearance. They could have designed a cool looking pop out door that only had a thin seam around it so it would still look good. Then you could remove the access door to upgrade the memory easily.
Does anyone know if this is the same situation as in the 2017 model? I just changed RAM in the 2017 version and also skipped taking out the logic board. I just bent a pair of tweezers and put some tape around the tips to make them less scratchy and used them to place the RAM modules into the slots. Worked supereasy and much much quicker than performing the complete tear down of the whole machine.
This step is impossible!
@wizdomonwheels, I don’t see how I can get the RAM shield off of the logic board to access the RAM without removing the logic board. What am I missing?? I’m guessing that those of you that are suggesting this technique are working on older iMac models that don’t have the RAM shield.
Yes, you are correct. It is likely the various steps are a bit different on each model. If I recall I was likely working on a 2015 or older system. If there’s a shield in the way, I can’t think of a way you could get around it without pulling the logic board.
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Svita le due viti Torx T10 da 7,2 mm che fissano l'alimentatore al case posteriore.
In my case, the left side corner of the PS was caught against the Lower Support Bracket, and I had to remove the LSB in order to get the PS freed and out.
I think the author Walter Galan should put this in the main section of his instructions. I have TWO identical iMac 14,1 / i5 2.7GHz / 21 Inch Late 2013 / Order ME086LL/A. They both required removing the LSB. Thank you very much Walter Galan & others for your contributions.
Those screws were definitely not T10 but T9 on my unit
Those screws were T8 on my unit.
c'est du torx 08
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Inclina l'alimentatore in avanti.
When replacing the PSU (on the re-build) take care not to trap the power button cable behind it - I did...
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Tira leggermente l'alimentatore verso l'alto e fuori dalla scocca.
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Ruota l'alimentatore in senso antiorario, sollevando il lato destro di circa 2 cm rispetto a quello sinistro.
In my case, the left side corner of the PS was caught against the Lower Support Bracket, and I had to remove the LSB in order to get the PS freed and out.
I think the author Walter Galan should put this in the main section of his instructions. I have TWO identical iMac 14,1 / i5 2.7GHz / 21 Inch Late 2013 / Order ME086LL/A. They both required removing the LSB. Thank you very much Walter Galan & others for your contributions.
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Schiaccia l'aletta sul retro del connettore del cavo di alimentazione e sfilalo dalla sua presa sulla scheda madre.
when pulled the cable, even slightly, the actual female piece that connects to the logic board came off. am i screwed?
Repairing sockets that come off the logic board is possible, but very specialised work. Unless you have a magnifying lamp and the necessary desoldering and soldering skills, it will be difficult but not impossible.
I could not disconnect this cable without fear of breaking something (as previous posters did). I found that I could skip this and the next step by wrapping the power supply in a couple layers of a small towel (to prevent shorting with any other metal surfaces), and laying the power supply on the aluminum face of the iMac near the Apple logo. This got it out of the way enough to do what I needed on the logic board (changing PRAM battery) after completing removal of the other items in this guide.
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Usa l'estremità piatta di uno spudger per premere verso l'interno l'aletta sul lato del connettore del cavo di alimentazione AC.
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Mentre premi l'aletta per il rilascio, afferra il cavi di alimentazione AC e sfilalo dalla sua presa.
I didn't disconnect the input cable to the power supply. Because I had the machine lying on its back throughout, I placed it on to the metal bit at the bottom of the machine instead (with a cloth to stop the metal getting scratched). The AC inlet cable was pretty tricky to get un-locked, and the PSU sat on the case fine. It didn't hinder anything else throughout the guide.
I thought from Dave’s comment that I could leave the power supply completely in place, but I was mistaken. In order to remove the hard drive assembly after you remove the center screw in it, you’ll need to at least unscrew it and the HD assembly will slip out. Like Dave said, you don’t need to unplug the AC or PSU, which I left hanging.
Getting power supply to the logic board unplugged is also tricky without unscrewing the two bottom screws. They didn’t make this part easy.
I would like to thanks Dave Hallett for his tip of not removing the AC inlet connector of the power supply. I simply wrapped the board in bubble wrap and taped to the iMac case, out of the way, thus giving access to the remaining disconnection procedures and preventing the board from scratching to the iMac case. It also made reassembly much simpler.
Yeah, that AC inlet plug was a nasty one to unplug, mainly because I was trying not to bump the solder joints on the PSU. After a few wiggles and pulls while manipulating the spudger tool to release the clip, it finally unplugged. Made it easier by removing the PSU completely so you don’t have to worry about it. Don’t worry, plugging it back in is a breeze!
With the right tool this plug comes out very easily. Forget about your tiny computer tools, go to the garage and grab a regular old needle nose pliers. Grab the clip and the plug at the same time. The plug will come right out.
Carin Ann— The most helpful comment on this procedure. After reading what you wrote I maneuvered the board, grabbed the clip with my left hand (a little awkward because of the cooling enclosure), squeezed the front of the plug, and got it out.
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Usa la punta di uno spudger per spingere il connettore del cavo della ventola fuori dalla sua presa sulla scheda logica.
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Solleva l'hard drive dal lato più vicino alla scheda madre e tiralo leggermente fuori dal suo alloggio.
The newer drives have rubber ends and an adhesive side, be careful removing them if replacing the drive and be sure they are securely pushed back into the holder
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Usa uno spudger per scollegare il cavo dati/alimentazione SATA facendo leva delicatamente su entrambi i lati del connettore per farlo scorrere lontano dall'unità.
When reconnecting the SATA cable, there is nothing to make the connector hold still, and it is hard to reach, so it took several tries. I ended up taking off the rubber baby buggy bumpers to get more room, and then jamming them back on after getting the SATA connector snugged up.
If by rubber baby buggy bumper, you mean left speaker, then yes, I agree. Reinstall the hard drive before the left speaker.
Kudo to @jerrid_foiles! I was going crazy trying to attach the SATA cable until I took the two screws out of the left speaker and slid the top end of it aside by about 3/4 inch. Make the whole process SO MUCH easier!!
We solved this by removing the hard drive tray screw, then inserting the cable into the SATA hard drive. Then hold the hard drive a bit out of the way to insert the 7.3mm hard drive tray screw.
Agree with this method, found it an impossible task to reconnect the SATA connector until removed the tray screw, then it was relatively easy to reconnect and then replace the tray screw.
Also agree with this method!
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Rimuovi il gruppo dell'hard drive dall'iMac.
When reassembling, I found it easier to loosen the HD tray screw from Step 48 and pull the tray outwards from the left side in order to plug the SATA cable in more easily.
Thanks! I, too, had a hard time reconnecting the SATA cable.
I found this helpful too!
Anwar -
I did loosen the speaker so I could get a tool behind the SATA cable to push it on to the SSD drive. Otherwise hard to align cable.
I found the easiest way to connect the SATA cable was to not screw the plastic hard drive tray down until you plug the drive in. That way you can easily push the connector in and due to the cable you’ve got some wiggle room. You can position the tray then just lift one end of the drive up and secure the screw. Then just push the drive down.
This was the step that I had the most trouble with. I’m used to replacing a hard drive in a MacBook Pro, where the “plug” that you plug the drive into is a rigid thing that you can firmly press the hard drive into.
With the iMac, the plug is situated on the end of a non-rigid cord, so the plug moves back when you try to snap a drive into it. Also, those two rubber gasket things that you adhere to the side of the drive really make it difficult to maneuver the now-overly-chubby drive towards the plug.
After must frustration/concern, what I ended up doing was temporarily removing the rubber gasket things, using the “spudger” as kind of a lever behind the “plug on a cord” so that it didn’t move as much, and then pushed the gasket-less SSD into the plug.
Once I got it connected, I put the rubber gaskets back on the sides of the SSD and kind of coaxed it down into place, using the pointy end of the spudger to get the chubby corner pieces to “sit” correctly in the rigid plastic tray that the SSD kind of rests in.
From another comment elsewhere on this repair, I *highly* recommend removing the two screws holding the left speaker in place, then sliding it just a tad out of the way to be able to easily attach the SATA cable. You don’t have to move it much to make the whole process so much easier!
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Rimuovi la vite T10 da 7,2 mm che fissa il vassoio dell'hard drive al telaio posteriore.
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Usa la punta di uno spudger per accompagnare il connettore del cavo dell'altoparlante sinistro fuori dalla sua presa.
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Solleva lievemente la parte più a destra dell'SSD e fai scorrere l'unità tirandola con una certa decisione fuori dal suo zoccolo sulla scheda logica.
At this “Remove logic board” guide Sostituzione scheda logica iMac Intel 21.5" EMC 2805 step 65, I’m not seeing any PCIe socket. Does this mean if you bought an iMac with HDD you cannot add PCIe-based storage module to it later? I see in this guide, there can be a HDD with the PCIe-based model.
If the iMac shipped with only a regular hard drive there will be no socket for a blade SSD.
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Per riassemblare il tuo dispositivo, segui queste istruzioni in ordine inverso e usa la nostra guida alla sostituzione delle strisce adesive per riattaccare il vetro dello schermo.
Per riassemblare il tuo dispositivo, segui queste istruzioni in ordine inverso e usa la nostra guida alla sostituzione delle strisce adesive per riattaccare il vetro dello schermo.
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3 Commenti
If I do not have an SSD connector, it is possible to weld it and it works
The wedge is an extremely tight fit for this model. I was worried that the amount of force needed to use it as shown might damage the stand, so I used it with the long side down instead. It worked fine that way and didn’t need anywhere near as much force to insert.
roberttrevellyan - Replica
Here’s a good YouTube vid on upgrading the RAM: Can a Normal Person Upgrade the RAM in the 2017 21.5" iMac?
Dan - Replica
Here are a couple tips from me:
1) Expose the adhesive to extreme temperatures. I did this by transporting my iMac in my car, screen-down on a piece of cardboard on a cold February morning (in Chicago). When I went to pick up the iMac, the screen practically fell off the chassis. I would have been distraught by this if I hadn’t already planned this replacement. So it was a happy accident.
2) Remember to expell the residual power from the power supply by pushing the power button while the iMac is unplugged. This does NOT guarantee it’s safe to touch, but when I accidentally brushed the solder and exposed capacitors, I didn’t get shocked.
jerrid_foiles - Replica
Instead of using the wedge, I placed the iMac faced up with the top side (web cam) facing me while I ran the pizza roller around. It worked out great!
Sam Fung - Replica
“All iMacs also come with a traditional hard drive” mine doesn’t!! it’s HDD bay is completely empty, no SATA cable or anything. I guess I’ll have to upgrade the PCIe SSD instead.
Chris Hughes - Replica
There is no replacement glass for this model, it is part of the LCD and impossible to remove or replace- the entire LCD has to be replaced unfortunately if the glass is cracked or damaged. You will have to Google search for a replacement. Also be careful with some of the lock tight tork screws as I broke one of my screw mounts taking one out.
Phil Tesone - Replica
I used this service wedge but also found it a very tight fit. The same stabilization can be achieved by using a big rolled up towel.
Ernst - Replica
While this is a good instruction guide, I recommend to also look at OWC’s instruction video about drive installation, before starting the exercise. Those install videos are very detailed and useful.
Ernst - Replica
Main advice: TAKE YOUR TIME with the pizza roller.
Make several passes, until you really feel like there's no more sticker in the way. Stay away from the camera though (approx. 1inch / 2.5cm on both sides). This will reduce the work left with the plastic card. Adhesive is really on the edge of the screen so there is absolutely no need to go any further than the recommended 1cm / 3/8inch depth.
Where are the sensitive parts?
Facing your iMac, imagine you're looking at a watch. There are antennas on 1, 2 and 4 o'clock. Do not insert any metal piece there (nor anywhere else, btw). Other than that AND the screen cables underneath the camera, not much danger.
Froggy Manny - Replica