Spinning wheel after installing Crucial BX500 1TB SSD on 2017 Retina iMac
Hi
After finding that the standard drive in my Retina 5K mid 2017 (18,3 - A1419) was failing, I took the plunge and replaced it with a Crucial BX500 1TB SSD (CT1000BX500SSD1)
However, since doing this, I have been getting a lot of hangs with spinning rainbow wheels that are making the system unusable. Sometimes it can take over a minute for the system to recover from a hang, only to jump into a new one as soon as you try to do something else. I've tried another external SSD (Samsung) with both MacOS and Windows 10 on it and they seem to perform really well so i'm pretty convinced that the problem is with the Crucial SSD. In all likelyhood there is something i have done incorrectly in setting this up as i wouldn't expect a brand new Crucial SSD to fail. Disk checks in Disc Manager have come back with nothing out of the ordinary.
I'm not sure where to start investigating if there is a problem caused by my setup. I just did a standard APFS partition on the drive, installed the latest OS and set it as the boot disk. Even with only chrome installed, the system is unusable. Ive tried a few different OS versions and all exhibit the same issue on this specific disk.
Can anyone help me diagnose and fix this issue?
Thanks
Mark