iMac A1419 (27-inch Retina 5K) Upgrade CPU Core i5 to Core i7
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- Опубликовано: 26 июн 2024
- How to disassemble and upgrade CPU on iMac Model A1419 Retina 5K 27 inch Display (Late 2014, 2015 and Mid 2017).
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Useful links:
The best thermal paste for iMac: • The Best Thermal Paste...
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Time code
00:00 iMac model a1419 upgrade CPU guide
00:10 Tools and screwdrivers for iMac A1419 disassembly
00:52 How to open iMac 27 inch
09:03 Removing the iMac motherboard
09:43 Removing the cooling system
11:15 Removing the Core i5 Processor
12:39 Installing a Core i7 CPU
14:23 Applying thermal paste to the processor chip
15:15 Installation of the cooling system
17:43 Reassembling the iMac
24:19 Testing the iMac
26:06 Removing the old adhesive strip
26:24 Sticking display to the iMac housing
* DESCRIPTION *
This step-by-step instruction is applicable for iMac Intel 27" Retina 5K Display Model A1419 (Late 2014, 2015 and Mid 2017).
To disassemble the iMac A1419 you need the following tools:
- Screwdriver Kit: Phillips 1, Torx T5, Torx T8 and Torx T10
- Opener
- Tweezers
- Plastic pry tools
- Adhesive tape
- Antistatic brush
- Thermal Paste
* DISCLAIMER *
This video intended for general information only. We will not accept any liability for damage or injury caused while following this guide. Any reliance you place on such information is therefore strictly at your own risk. This video description and commentaries contains affiliate links, which means that if you click on one of the product links, I could receive a small commission.
* AFFILIATE PROGRAMM *
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
#howfixit #fix #imac 
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*For more info check out the links in the description*
imac 2019??? posible?
I would have replaced the pram battery while I had the motherboard out they are inexpensive and really hard to get at unless you’re replacing the cpu as you did in this video!
Great video! I’m thinking about upgrading my iMac and your video showed that with care it can be done! 👍🏻
thanks for this very clean& clear video instruction. PS: why do you put the m.2 SSD at the right of your video?
I would have done a ssd swap from that hard drive while you were in there
Great video. thanks🤩
Unfortunately I’ve ruined my CPU socket while doing a CPU upgrade. So I definitely would NOT recommend to do that. The Problem are the screws and the bricks when you turn over the board (15:29). It is nearly impossible to insert and fix the 4 screws with one hand while you are holding with the other the CPU cooler. In this Video it is not shown how the guy inserted the second screw in the opposite side. They are suddenly and magically in. It is needed to use pressure on the screw that it can grip the hole. And minimum wiggle lets the CPU dance lambada on the other side without your noticing that. And when you however successfully grip and turn in the screws your pins on the socket are messed up. This was in my case so.
Hmm - this concerns me: I have to renew the thermal paste on my 1419 because it’s apparently dried out (fans max out when just browsing web pages). No choice, but thanks to your note I’m gonna be extra- super-careful(!)
Any tips for keeping everything aligned when putting back together? (Or maybe what *not* to do?)
@@DaveEtchells Yeah, you can fix the CPU on the two corners with a mini drop of hot glue gun (don‘t know the exact english name for that) so that the CPU is fixed on the socket and can’t wiggle.(really a mini mini drop). As second yo can pre-bend the corners of that X typed Metal sheet a on the backside little bit, so that not max pressure is needed to fix the screws. I would also recommend to that with two persons one is holding everything stable the other is trying to put the screws in. Good Luck.
@@pokololo50 Ah, great suggestion about the hot glue! I will have to be careful to use just tiny amounts of it though, so it won’t interfere with the pressure needed to hold the CPU against its contacts. Also a *great* idea to have two people: I could hold it in place and push down the tabs one by one, while my wife gets the screws started. Thanks so much for the suggestions!
(Hmm, bending the tabs down to reduce the pressure would work too, but once it’s all together, you want a lot of pressure to squeeze the thermal paste as thin as possible. I wouldn’t want to bend them back and forth too much, but it might be possible to flatten them to get the screws in place, then one by one with the other 3 screws tightened down, bend each one back up to its original position and replace and re-tighten the screw.)
It’s bad that the video doesn’t make a point of this. 🙁
@@DaveEtchells In my case after I had replaced the Board I‘ve exactly done these two things (glue the CPU with socket and pre bend minimal this X Formed metal sheet on the Backside of the CPU). For me it worked well. But of course you can try without bending that plate but here is the recommendation, if you anyhow notice that screws won’t grip then do not to try with violence to put anyhow the screws in. Better is stop at that point check and then try again.
Don’t be afraid. If you are very careful then it should be ok. I also agree. They could give a couple of more hints about these screws in this video. It looks very easy but it isn’t.
@@pokololo50 Thanks for your advice: I think I was successful. - I say I think because I haven’t tried booting it yet. (It’s going to be a process, because I swapped out the SSD, so have to do a bare-metal MacOS install and it’s very late here tonight so I’m going to tackle it tomorrow.)
The actual heat sink reattachment ended up not being too bad. (Documenting here so someone else can hopefully find it at some point) I did tack the CPU down with some tiny (really tiny) dabs of hot glue in the corners. Then I screwed down the GPU heat sink first, which helped secure the CPU side. Next I put a screw in one side of the spring bracket, turning it only enough to insure that it was fully engaging the heat sink threads. (I only inserted one screw then worked on getting a screw into the opposite corner of the bracket, but think it would actually have been perfectly fine to just-barely put a screw in the other hole on the same side too.) With the heat sink pretty well immobilized at that point, it wasn’t hard to push one arm of the other side of the spring with a finger while I put in a screw to hold it, again just turning it enough to make sure it was fully engaged with the HS threads. From that point it was easy to do the same with all the screws for the spring, pressing each arm of the spring down with a finger while I tightened its screw.
I actually did this last night and today has been a looong day so my memory is slightly fuzzy as to whether I actually managed to get the fingers of my hand around to the other side so I was “pinching” the spring or if I was just careful not to press the heat sink assembly too hard against the bench, so just a note to others to be careful when pressing down the arms of the spring with your fingers not to damage anything on the other side by putting too much force against whatever it’s sitting on.
In any case, the spring bracket ended up being much less trouble than I expected it to me - thanks in large part to your suggestion of using tiny (emphasis on “tiny” to others reading this) blobs of hot glue to keep the CPU from moving around. Thanks so much for your advice!
(To others reading this, I didn’t apply the glue directly with my hot glue gun. I squeezed a blob out onto a piece of cardstock, then used a heated, small-bladed flat screwdriver to pick up bits of glue and transfer it to the corners of the chip/socket.)
(Update: This worked great; the fans only spin up under high workload, and almost never get to full speed like they used to. It was a bit tricky but worked well AMs was very worth the effort 😁)
ty
I have the same iMac with a i5 and want to upgrade it. Apple says the CPU has a 1150 socket. Will a 1151 like you use also fit?
What do the new thermal pads do exactly?
Hi, what cpu temperatures did You get after this upgrade?
What thickness of thermal pad do you use for the vram of the gpu ?
If you can disassemble a regular computer you can do this. Worth it.
Sure, all regular computers have glued screens prone to crack.
if you open the imac this way, you WILL broke it for sure! you need to be very, very carefull to remove de tape. it'll take at least 15 minutes just to cut the tape. the right side is worst because the tape is larger where it covers the wi-fi antenas.
this is not the right tool to cut the adhesive, this is very dangerous, you may break the glass
Its not very thin it has aluminium. Behind it.
how about renewing the button battery must be tired an old by now an how about new ssd ...is it a fix for a friend
Good
Why after doing all that not update the nvme ssd? One other I would be really careful with that blade,
it's easy to cut into one of the chips around the outer edge of the display and have a Solid black line on the display.
All im all nice job.
does anyone know if there’s anywhere I can go to get this service done for me?
termopad for grapfic memory how?0.5mm 1mm?
5:58 is it safe to hold the PSU like that?
16:00 I lost 1 screw out of the 4 of the CPU Heatsink screws. Will it cause any performance issues? I really needed answer/help and really much appreciate it. Thank you.
Hey mate. Uneven pressure on CPU stone will most likely destroy it over time. You must purchase the missing screw and make sure the pressure is equal on each.
I hope it helps.
You can do that?
I would upgrade from HDD to SSD too
@howfixit What thermal pad thickness had you used for this?
hi, I have an imac 5k, 27-inch 2020 with an i-5 3.1 processor, I could swap it for an i-7 as well.
Oh really? can you upgrade its SSD?
Hello, what's the way to find the correct thickness for the thermal pad? Best regards
No way. Wrong recomendations...
Buy a mixed pack of thermal pads - I think mine has 0.5, 1, 1.5 and 2mm - and use that to match up to the pads you remove. (I may have added the 2mm pads to the set separately.)
It’s easy enough to see if a pad is compressed or not - if there’s an uncompressed edge then match the pad thickness to that, if the whole pad is compressed then go 0.5 or 1mm thicker than the compressed thickness.
Not all versions of this iMac model have an NVME port, only those that come with 4 or 8TB.
You mean HDD?
the fusion drive ones have the port, I just upgraded it on mine for a 2TB OWC and it's a beast now.
What thickness of thermal pads do you use on the chips?
Good question. And not yet answered in the comments below. I would be very interested too 🙂
im sure, late 14th will change into late 22, right?
for CPU purposes its the same. but things like SSD and Harddrive change.
Hi, does the power supply supports the 91 w from Core i7 7th gen?
6700k was a factory option. PSU most likely the same across all variants.
I have a late 2014 iMac with a i5. I was planning on upgrading to an i7, but since I was told its a lga1151 I was wondering if a i9 will work on it, if not, what's the best CPU for this iMac?
Did you try the i9?
…no, it won’t work, just because the socket is the same across different generations it doesn’t mean that the CPUs across different generations are interchangeable..
Hi, I am from India, I do have I mac 27 inch 2017 module with i5 7500. Can I upgrade for i7 or i9? Which is better? I comes to know that upgrading will create over heating issues and increase fan rpm too. Whats your recommendation?
The strongest cpu you can put into your computer would be the i7 7700k, since there is no core i9 for 7th gen intel processors.
The 7700k though is well known for being a hot pocket, so maybe look for good thermal paste if you plan to upgrade to the i7. The i7 7700 non K is slightly worse and slightly less hot. Might be an idea too.
Don't waste your money. May be an SSD upgrade is a good idea.
What I did was a 3.4Ghz i7 - much better thermals and turbos to 4Ghz anyway.
@@bitshufflethanks for that note!
@@pigknickers2975Ah, thanks for that tip! I might do it but the tip to go with the 3.4 GHz sounds good.
since this is a really basic process, why do people on the internet say that you can't swap the cpu of a 2015 imac?
Because 21.5" models in that year came with soldered components, still doable but a much more difficult job, easier just sell that computer and buy another with the desired specs.
Boot from an external SSD. Make life easy.
What's the socket for the processor? LGA 1157?
The socket in this machine should be LGA 1151 v1.
@@bitshuffle Thank you
I've a question 4Ghz i7-6700 is fine also for a Mid 2015 27"?
Noboby knows nothing about it?
You need the 4Ghz i7-6700k@@FrancoPastorino
You sure? Also for a Mid 2015?
Can I upgrade iMac 27inch 2017 cpu to i9 9900?
YEAP, it takes both the i9 9900k and i9 9900kf
@@juanramirezsierra1690 have you tried it before? Cuz some people say it won’t work since it’s more watts
You can’t. 2017 models use 7th gen intel CPU’s and the socket is incompatible to all existing i9 processors.
the first (ever) i9 processor is in intels 9th gen which can only be put into 2019 models.
@@bitshuffle hey there,
I have a 2020 27" 5K iMac with intel core i5 10600 3.3 GHz processor, what is the biggest processor i can install on this one?
@@dowran_official That would be the intel Core i9 10910 or the i7 10700k.
The method you use to remove the screen is very dangerous
What’s a better way? Genuinely wondering
Use a pizza cutter. Much safer @@hamasathecold7842
@@hamasathecold7842 use the ifixit mac screen removal tool - it uses a roller blade instead of a knife blade like the one used in the video - it has the correct depth, so you cannot cut any cables inside, plus these displays are prone to cracking if one uses too much pressure on the edges.
This is so painful to watch. Why am I here?
🥱