Well, one more "have you seen this before?"
I'm having a mystery with my onboard SATA connections. Two of them are used in a SSD RAID 0; one goes to an optical burner, and three go to "a cage" which I can access from the front panel of the machine. In fact the top-most of these is what I boot from when I'm trying new things or have an emergency, as my main boot drive is an Nvme.
The bottom slot in the cage is a 4TB spinning drive, where I just store stuff. Obviously it's much slower than the rest of my setup. That's the setup... the issue is the center or top slot - if I put an SATA SSD, like a Samsung EVO, into that slot, I cannot boot the machine. It starts up; makes it thru the first black screen and about 95% of the way thru the second... and then stops, just a tiny fraction away from realizing the desktop. (A boot clone in the top slot, OTOH, boots just fine.)
It's not the SSD itself, as I can pop it into a USB 3 toaster enclosure, and it works just fine.
I've looked at the BIOS, and all the onboard SATAs are enabled (and set for hot swap).
Overall, I do have to admit that it seems the SATA on this machine seems a bit flakey. It's not as reliable as, say, USB. I can go back in and check the connections of course... but I'm wondering if there is some driver or kext I'm missing, or that might be better for this hardware?
My UEFI drivers are:
ApfsDriverLoader.efi
AppleGenericInput.efi
AppleUiSupport.efi
AptioMemoryFix.efi
DataHubDxe.efi
HFSPlus.efi
VirtualSmc.efi
and my kexts are:
AHCI_3rdParty_SATA.kext
AppleALC.kext
IntelMausiEthernet.kext
Lilu.kext
RealtekRTL8111.kext
USBPorts.kext
VirtualSMC.kext
WhateverGreen.kext
Nothing urgent about this - it's just annoying, and while I'd prefer that SSD permanently mounted in the cage, like my 4TB storage drive, I can easily work around that using USB.
Just curious if you have any suggestions.
Thanks