Well Those who did it right they are happy and no problem! Specially for people who has slow fusion drive and wanna do photo/video work and 128g apple flash drive is not enough! I did last week and I am very happy with the result!What is the long term reliability of these upgrades guys after you've taken the MAC apart and upgraded the flash and the SSD? Is anyone happily running years after such an upgrade?
OK, many thanks!Well last week I did the upgrade with a bootable Monterey 12.0.1 usb and last night update to 12.1 no problem!
You can keep your HDD but it will slow you down! At least try to make them 2 complete separate drive and your os and applications only on fast drive! First format Samsung with bootable usb install your os and then later format you hdd for back up data and things!
The bracket that holds the heat sink on. I had a lot of issues with it. After the 3rd teardown and rebuilt, I took some of the bend out of it. Everything worked after that. You may have better results.Thanks for this post, very helpful particularly with the CPU. I just have troubles to understand (2) - which brackets are you talking about?
Which adapter/bracket and which ssd (lets say 1TB) would you recommend? At some point, I may go back and swap the blade. I will need to acquire more OEM adhesive strips first.Seems to be the Crucial blade SSD. Unfortunately the P2 not the best SSD you can get, in fact quite the opposite. For a little $ more you could have gotten 3x the read speed and about 18x the write speed. The P2 is one of the slowest NVME SSDs on the market and on top one with rather low endurance. It performs way under the potential of your Mac.
Still, 800-ish really are below the potential of even this SSD. You might want to check seating of the SSD in the short Sintech adapter and then again the adapter in the Apple blade port - this might account for some the of low performance.
Good luck!
Magnus
I personally would always go with a Samsung, e.g. 970 Evo, 970 Evo Plus (newest firmware update; but all the ones produced after 2020 have it) or the new 980 (I just installed this in a Late 2013 without any problems, and its quite cheap; see here: #750). All of them have higher read and more consistent write speeds, but most importantly a lot higher write endurance. If you intend to use the iMac intensively for a longer time, then endurance might be important for you.Which adapter/bracket and which ssd (lets say 1TB) would you recommend? At some point, I may go back and swap the blade. I will need to acquire more OEM adhesive strips first.
Sure, but you mention adhesive in this context:The bracket that holds the heat sink on. I had a lot of issues with it. After the 3rd teardown and rebuilt, I took some of the bend out of it. Everything worked after that. You may have better results.
2) If you remove the board to replace the blade as well, the adhesive that goes over where that bracket is needs to be the last strips to go on. That bracket needs to be the last part you install, obviously.
Do you by any chance have photos on the straightened heatsink bracket? That would be very interesting indeed! Thanks![...]
I accidentally bent the CPU (I blame Apples heatsink bracket), both the original and the upgrade, numerous times. After the third rebuild, I hand straightened it then used pliers (I read this somewhere in this thread) to take some of the bend out of the heatsink bracket. So yea, I had to manually flatten out the heat sink bracket some to release the tension it was causing. Only after doing this did I have success.
[...]
No. All I did was use a pair of pliers and a channel lock to take a little of the bend out of it. This in turn put a little less tension on the processor. This, and me hand straightening the processor corner after it got bent a little, allowed the machine to finally boot. I took it apart and put it back together at least 3 times. You are not straightening the whole bracket, you are just taking a little of the bend out of it which releases a little of the tension. It shouldn't be that noticeable. I would try it the normal way first.Do you by any chance have photos on the straightened heatsink bracket? That would be very interesting indeed! Thanks!
I chose a Samsung 970 EVo Plus and I regret it. I have a very slow boot time because of slow trim.I personally would always go with a Samsung, e.g. 970 Evo, 970 Evo Plus (newest firmware update; but all the ones produced after 2020 have it) or the new 980 (I just installed this in a Late 2013 without any problems, and its quite cheap; see here: #750). All of them have higher read and more consistent write speeds, but most importantly a lot higher write endurance. If you intend to use the iMac intensively for a longer time, then endurance might be important for you.
970 Evo Plus has 600 TBW for 1 TB drive.I personally would always go with a Samsung, e.g. 970 Evo, 970 Evo Plus (newest firmware update; but all the ones produced after 2020 have it) or the new 980 (I just installed this in a Late 2013 without any problems, and its quite cheap; see here: #750). All of them have higher read and more consistent write speeds, but most importantly a lot higher write endurance. If you intend to use the iMac intensively for a longer time, then endurance might be important for you.
I used this Sintech adapter: http://eshop.sintech.cn/index.php?main_page=product_info&cPath=130_132&products_id=1229
Good luck,
Magnus
[…] Question: The listing for the Sintech adapter people are frequently mentioning says it is not compatible with w/ 970 Evo Plus. However, I also see a lot of posts where people are using this drive. [...]
I chose a Samsung 970 EVo Plus and I regret it. I have a very slow boot time because of slow trim.
You can check here :
https://forums.macrumors.com/thread...grade-pitfalls-and-tips.2177812/post-30716033
Thanks @mbosse ... I saw @alloallo 's post ... I have been booting from a SanDisk SSD via Thunderbolt and it just recently seemed to be slowing down / not booting. When it's running it works great, but the very long boot time is worrisome.Thanks for this info, this is new to me. My previous upgrades with this drive have long being sold, and my most recent upgrade of a Late 2013 with a Samsung 980 is limited to Catalina, so I had no chance to check this.
Best currently, I guess, is to avoid the 970 Evo Plus.
Thanks @mbosse ... I saw @alloallo 's post ... I have been booting from a SanDisk SSD via Thunderbolt and it just recently seemed to be slowing down / not booting. When it's running it works great, but the very long boot time is worrisome.
Is there a drive you like more than 970 evo? Or maybe this is an issue w/ Monterey that the next OSX update will fix.
Hi SaschaHallo from Germany and having a good 2022.
I wann a change the origin NVme from my iMac 2019 3,7 with Fusion 2TB to a Samsung EVO 970 Plus 2TB.
Having both of them the one with Phönix and Elpis Controller the question is Is it worth taking the Phoenix or Elpis Controller?
What is u‘s favorit. Firmware is actually the newest.
Have someone installed Bootcamp on the NVMe without problems having a second (SSD wanna take it only for Timemachine )
At least sorry for my english it’s not the best at all.
Best regards
Sascha
Hy it seems to be an 32 Bit problem not only by the Samsung SSD. If there is a 32 bit App installed then Montery didn‘t support, only 64bit Applications.The comunicación between EFI, hardware and OSX is corrupted in the beginning of booting the system caused an error by the 32 bit Apps and is hanging the time of booting.Hi Sascha
as per this recent post here ( #790 ) for the time being I'd refrain from using a Samsung SSD to avoid extremely long boot times.
Best,
Magnus
For what its worth, my SanDisk external boot drive is functioning at normal/expected speeds. Maybe a restart or three fixed it - not sure. Anyway, I wanted to post back and update this so anyone reading would know it was a glitch and thankfully doesn't appear to have been permanent.For the latter, only time will tell, and I hope for that!