hi,
I recently swapped out my (2TB) dual fusion drive setup on my 2017 iMac 27", to a singular 2TB Samsung 970 Evo Plus NVMe with the Sintech adapter. Alongside the SSD swap, I also installed 32GB of Crucial memory, coming from the stock 8GB apple memory. Before I sealed the screen back up, I removed the SATA cable that connects to the Seagate drive as I wasn't putting another SSD back in its place like many youtube videos show (why would I need two drives?).
well I was sorta expecting it after stories I heard, and it happened; my fans went full blast since the 'temperature sensor' firmware from the seagate drive is no longer present inside the iMac (i'm use the Mac Fan Control app as a temporary fix for the time being, if anyone knows the correct way of remedying this, lemme know). Ive heard the OWC adapter is sort of controversial of what it actually achieves so I didn't bother getting it.
Alongside the fans going full blast was another change, and that was this subtle, high-pitched repeating chirping noise coming from what it seemed like the bottom of the iMac near the speakers. I noticed the sound would change when I scroll on a webpage, or mostly change my brightness up and down. After a bit of research I come to find out this is called 'coil whine' and it actually may be sourced at one of the power supply coils if I understand correctly? I have purchased a replacement power supply to swap out in hopes to remove the chirping but my hopes are preeetty low, lol.
Anyways, sorry for the long intro to my main issue here, and that's the speed of the new 2TB NVMe.
I installed Mojave and ran updates after, but noticed that the OS was super sluggish: booting the computer takes longer than my fusion drive setup at about a minute-ish, waiting for apps or any processes to open takes like 10-15 seconds, and when I noticed the dock's magnification effect looked like it was 15fps I realized something was off. The whole computer feels like a dated Mac with a HDD inside of it. after googling my symptoms, people said to make sure your default drive was set to the new SSD, and it is. I have tried enabling TRIM inside of Terminal, but it didn't automatically reboot for me so I don't think it was able to activate; to be honest I'm a little knowledge-lacking of the correct way to configure a NVMe on after installation, hence why I'm here. Aside that Im getting a little exhausted of trying to dig up what's wrong , but trying to stay optimistic...
(UPDATE: enabled TRIM, didn't change)
(UPDATE: switched out ram for the old OEM Apple 8GB, no change)
so yea, slow OS after installing an NVMe. could it bethe ram? the TRIM or any other setup steps? the power supply not preforming correctly? (ehh), or something else.
I'm stuck here now so any useful help is appreciated.
thank you
I recently swapped out my (2TB) dual fusion drive setup on my 2017 iMac 27", to a singular 2TB Samsung 970 Evo Plus NVMe with the Sintech adapter. Alongside the SSD swap, I also installed 32GB of Crucial memory, coming from the stock 8GB apple memory. Before I sealed the screen back up, I removed the SATA cable that connects to the Seagate drive as I wasn't putting another SSD back in its place like many youtube videos show (why would I need two drives?).
well I was sorta expecting it after stories I heard, and it happened; my fans went full blast since the 'temperature sensor' firmware from the seagate drive is no longer present inside the iMac (i'm use the Mac Fan Control app as a temporary fix for the time being, if anyone knows the correct way of remedying this, lemme know). Ive heard the OWC adapter is sort of controversial of what it actually achieves so I didn't bother getting it.
Alongside the fans going full blast was another change, and that was this subtle, high-pitched repeating chirping noise coming from what it seemed like the bottom of the iMac near the speakers. I noticed the sound would change when I scroll on a webpage, or mostly change my brightness up and down. After a bit of research I come to find out this is called 'coil whine' and it actually may be sourced at one of the power supply coils if I understand correctly? I have purchased a replacement power supply to swap out in hopes to remove the chirping but my hopes are preeetty low, lol.
Anyways, sorry for the long intro to my main issue here, and that's the speed of the new 2TB NVMe.
I installed Mojave and ran updates after, but noticed that the OS was super sluggish: booting the computer takes longer than my fusion drive setup at about a minute-ish, waiting for apps or any processes to open takes like 10-15 seconds, and when I noticed the dock's magnification effect looked like it was 15fps I realized something was off. The whole computer feels like a dated Mac with a HDD inside of it. after googling my symptoms, people said to make sure your default drive was set to the new SSD, and it is. I have tried enabling TRIM inside of Terminal, but it didn't automatically reboot for me so I don't think it was able to activate; to be honest I'm a little knowledge-lacking of the correct way to configure a NVMe on after installation, hence why I'm here. Aside that Im getting a little exhausted of trying to dig up what's wrong , but trying to stay optimistic...
(UPDATE: enabled TRIM, didn't change)
(UPDATE: switched out ram for the old OEM Apple 8GB, no change)
so yea, slow OS after installing an NVMe. could it be
I'm stuck here now so any useful help is appreciated.
thank you
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