Chosen Solution
Hello, I have a 21.5" iMac 4K (2017) 1TB Fusion Drive and want to upgrade to a SSD. Is it possible? What I have to do? Update (10/18/2017) Oh! Crucial has a new SATA SSD which is very fast and CHEAP! 480 GB für 150€! It comes with an adapter. Nice! http://www.crucial.de/deu/de/imac-%2821*… Update (25.10.2017) Okay thank you guys! Now I understand. $@$* happens … I had bought an iMac with normal HDD and this can be changed easily… $@$* ! Fusion drive is almost the badest thing …. Thank you! Update (25.10.2017) And 1TB Fusion Drive has 32 GB SSD and not 24 GB… ;-) Apple says: „Der 1 TB Fusion Drive kombiniert eine 1 TB Festplatte mit 32 GB schnellem SSD Speicher“
Sounds like you already have some type of SSD, as a fusion drive is a combination of a standard drive and an SSD. Please go under the Apple to about this Mac and look up what two drives you have.
mmm… At this point I think you are a bit stuck. If you can I would return the system and get a SSD only model instead. If thats not an option then… The next best option is to get an external Thunderbolt RAID drive like either of these: OWC - Mercury Elite Pro - Dual drive or OWC - ThunderBay-4 mini - Quad drive and add in your own SSD’s. As your system is so new I wouldn’t opening it up as you’ll loose your warranty. But if you are willing then you’ll need backup your drive first, then break the Fusion Drive set before you open the system following this IFIXIT guide: iMac Intel 21.5" Retina 4K Display (2017) Logic Board Replacement The issue is you need to pull the blade SSD and get a replacement. Your current SSD is only 24 GB which is quite small. Once you replace the SSD with the larger SSD you should be fine. Now the Rub! Getting a larger SSD will be expensive as well as hard. Which is why I think given of the issues here it is smarter to go with the external drive.
how much estimate or cost if i send my mac to a repair shop, adding more ram