I also had this IONVMeController issue. I upgraded my Macbook Air 13" 2015 with the Sintech NGFF adapter and a Crucial P1 500GB NVME SSD and it worked fine for the entire duration I had it. I then upgraded to a Crucial P2 1TB 3D NAND NVMe SSD. I had no issues using this configuration for 4 months until the crashing started. When I wake it from sleep it crashes; login after it auto sleeps, crashes; cold boot, crash; restarts, crashes again; Bootcamp to Win10, crash! Finally, the panics would occur every other time I booted. This kernel panic behavior got even worse and it would just crash while I was using it for university or watching videos, which was really annoying!
I followed guides on the internet and they did not resolve my issues. Here are some solutions I tried which did ***NOT*** resolve my issues but could help you:
* PRAM and SMC Resets
* Latest MacOS updates (I ran Big Sur)
* Apple Diagnostics (Unhelpful as usual)
* Disable "Power Nap while on battery power"
* Using "caffeinate" command in Terminal
+
* Disable hibernation via Terminal
* Upgrading to Monterey
* Downgrading to Big Sur and restoring from back up
* Reseating the SSD (Make sure to properly shut down and remove the battery connector beforehand)
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I tried everything because I really did not want to buy a proprietary SSD after I already upgraded my Air. I stopped short of buying a new SSD when I again inspected the SSD and the adapter. It appears that the plastic connector of the Sintech NGFF adapter can just so slightly bow a little bit upwards. I hypothesized that this bowing up of the adapter made the SSD not have a good connection.
[image|2897223]
So I ***gently pushed down on the plastic of the Sintech adapter so that the top was more or less parallel to the pin array of the adapter***. Then I cleaned it with some 99% IPA, dried it, and plugged it back in. I tested it for hours using heavy loads like Cinebench, opening several applications like mail, Discord, Google Chrome, and there hasn't been a single crash at all. To prevent this bowing again, I placed a piece of 1.5mm thermal pad on top of the adapter.
[image|2897224]
I can happily say that my machine can still live on strong (hopefully)! Let me know if this works for you.
Hello y'all,
I also had this IONVMeController issue. I upgraded my Macbook Air 13" 2015 with the Sintech NGFF adapter and a Crucial P1 500GB NVME SSD and it worked fine for the entire duration I had it. I then upgraded to a Crucial P2 1TB 3D NAND NVMe SSD. I had no issues using this configuration for 4 months until the crashing started. When I wake it from sleep it crashes; login after it auto sleeps, crashes; cold boot, crash; restarts, crashes again; Bootcamp to Win10, crash! Finally, the panics would occur every other time I booted. This kernel panic behavior got even worse and it would just crash while I was using it for university or watching videos, which was really annoying!
I followed guides on the internet and they did not resolve my issues. Here are some solutions I tried which did ***NOT*** resolve my issues but could help you:
* PRAM and SMC Resets
* Latest MacOS updates (I ran Big Sur)
* Apple Diagnostics (Unhelpful as usual)
* Disable "Power Nap while on battery power"
* Using "caffeinate" command in Terminal
* Upgrading to Monterey
* Downgrading to Big Sur and restoring from back up
* Reseating the SSD (Make sure to properly shut down and remove the battery connector beforehand)
I tried everything because I really did not want to buy a proprietary SSD after I already upgraded my Air. I stopped short of buying a new SSD when I again inspected the SSD and the adapter. It appears that the plastic connector of the Sintech NGFF adapter can just so slightly bow a little bit upwards. I hypothesized that this bowing up of the adapter made the SSD not have a good connection.
[image|2897223]
So I ***gently pushed down on the plastic of the Sintech adapter so that the top was more or less parallel to the pin array of the adapter***. Then I cleaned it with some 99% IPA, dried it, and plugged it back in. I tested it for hours using heavy loads like Cinebench, opening several applications like mail, Discord, Google Chrome, and there hasn't been a single crash at all. To prevent this bowing again, I placed a piece of 1.5mm thermal pad on top of the adapter.
[image|2897224]
I can happily say that my machine can still live on strong (hopefully)! Let me know if this works for you.