The 2.5 SDDs are mostly universal, I like the Sandisk Plus they have macOS firmware drivers. For NVME the Western Digital Black 750-850 series work well. The 850 has very fast PCI 4.0 but the B450 doesn't have that so the 750 will max out your speeds.
The best setup is to have MacOS on...
Samsung NVME 970 series do not work well in MacOS. The memory controllers are buggy it would be better to get a cheap SSD to start with. Western digital has some nice compatible nvme drives, but a standard 2.5” SSD would work and if you like it you could upgrade later to an nvme.
Yes it will work but you should get a separate drive for MacOS. Windows updates tend to corrupt macOS drives if they are on the some disk:drive system.
Go to the golden builds section and find Casey's build threads. It's a great source of current info and links to begin your journey.
Sorry, I've been out of town. This EFI has worked for some time, But it was done using the old clover. At the time Open Core was messing with mainboard bios on Haswell systems. Maybe the Installer (MacOS) is not compatible. GibmacOS may have a workable version 10.15.4.
Are you seeing...
The original EFI (generic) that comes with OC really should be highlighted in the guides maybe with repetition so that users don’t to sign into Apple accounts with the iMac19,1 serials which are bogus numbers.
iMac 19.1 is not recommended for Ryzen systems, iMacPro1,1 or MacPro 7.1 are most commonly used. 19.1 is known to be buggy.
npci=0x2000 missing from boot arg. most likely causing error.
SuperIO.xxx kexts are for Intel systems. Look into "TrulySpinach" for AMDprocessor kexts and utilities.
Try running clover installer and select the USB as the target and use UEFI mode in the clover “custom” settings tab. You have to select UEFI mode for it to install to the EFI partition of the USB. This clover folder can be modified and used to boot installed OSX drives.
I have two Thermals one a neighbor gave me about 10 years ago, he had it for awhile as well. I have pushed it at times. It's a 480w unit and I've ran my RX480 for years on it with no issues. I'm not sure about the newer PSU models but I know reviewers like to bag on Thermaltake cases and...
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