Why on earth you are using the generic jimj740 NVMe kext from 2015?I've had HUGE problems with the Sonnet 4x4 M.2 on a MacPro 5.1 2010, 12-core 3.46Ghz, 80Gb, on Mojave 10.14.6 (Boot ROM version is latest 144), with RX580 Sapphire Pulse 8Gb, Samsung 860 Pro Sata SSD Boot (on OWC Accelsior S card in Slot 4). Have 4 x 24" BenQ monitors connected to RX580.
Sonnet 4x4 (in 16x Slot 2) has been bought 3 x Samsung 970 Pro 1Tb, and 1 x Samsung 970 Evo 1Tb.
All 970s have been pre-formatted before-hand, one at a time using an Anyoyo external USB-C 3.1 drive as Extended (Journaled) with Apple Disk Utility. All double green lights are ON in the Sonnet 4x4 so all the Samsung M.2 cards are new and fine. All are intended for Premiere and After Effects work.
The MacPro simply won't boot when the Sonnet 4x4 is installed.
Unfortunately, I've a non-flashed RX580 (thus far, but seriously thinking about flashing with MacVidCards) so black screen start-up of course, but only Boot cycles over and over.
When the Sonnet 4x4 is removed it starts up perfectly with the archived crash screen showing a kernal panic and full crash report (attached Jpeg if you want to read).
Sonnet have already replaced it immediately I complained to them, but the second one is doing exactly the same thing.
I even tried it in a near identical MacPro except it's only a 6-core 3.46Ghz and not a 12-core as my main production machine, but its RX580 only runs 3 x 24" HD Monitors. Exactly the same thing happened on it. Doesn't work. Doesn't boot.
WHAT I'VE TRIED (with the second REPLACEMENT Card Sonnet sent) - that still didn't work:
- Starting up as clean, new Admin User with no drivers, no additional hardware, disabled Sophos security, no additional HDs
- Removing everything (all drives and PCIe cards but the Boot drive and RX580 GPU) to reduce power draw
- Using only 1 x Samsung 970 Pro or 970 Evo M.2 (Extended Journaled) on the Sonnet 4x4 on its own
- Reset the SMC Reset / EFI and NVram
- Put the Boot Drive on a standard OWC Mount Sled and put on the SATA board in Slot 1 instead of PCIe board with Accelsior card
- Tried Sonnet 4x4 in Slot 1, and the RX580 up one in Slot 2.
- Ran diagnostics test on internal hardware, sensors, RAM and other things in Techtool Pro 12 — all Passed Green
- Watched the start-up lights with the side door open watching the lights on the 4x4…
- All 4 rows of the 8 dual green lights are on immediately, thus all Samsung 970 NVMes are pre-formatted and working fine.
- Fans on to start-up, activity green light flashes slowly
- OWC Accelsior Boot-up card blue light comes on which boots from the 860 Pro Sata
- After about 45secs, the left-hand 4x4 Activity light flashes red – once – and the blue light on 860 Pro goes out, the fans on MacPro power down, and the right-hand 4x4 Activity light flashes at twice the speed of before.
- Cycles again and tries to start up yet again.
- This continues ad infinitum
Absolutely at my wit's end and have spent hours trying to get this damn thing to work. Sonnet have been less than helpful (thus far) in any out-of-the-box thinking but physically replacing the first one promptly (which was fair enough).
Again, tried this on a 12-core and a 6-core 3.46Ghz and both do the same thing. But have a look at the Crash log Screengrab from my 12-Core attached to this post.
Any ideas guys would be greatly appreciated.
Your backtrace show it installed (com.MinnowStor.NVMeGeneric). Remove it.