Hi, i'm new in the world of hackintoshes, I'm hoping to get some advice on a memory allocation crash I can't bypass.

I’m trying to install macOS on my Dell Latitude 7490, but the bootloader instantly panics and falls back to my Linux partition the millisecond it tries to load the Kernel Collection.

Here are my specs:

• Model: Dell Latitude 7490
• CPU: Intel Core i5-8250U (Kaby Lake R) @ 1.6 GHz
• RAM: 8GB DDR4 2400MHz
• Storage: 256GB M.2 SATA SSD 6Gb/s
• BIOS Version: v 1.41.0

The Issue

I am booting a freshly made USB installer. OpenCore loads, I select the macOS installer, and it instantly crashes. I enabled AppleDebug and ApplePanic, and the log always ends at the exact same line:

[EB.LD.LKC|R.1] <"System\Library\KernelCollections\BootKernelExtensions.kc">

BIOS Settings

I have verified my BIOS settings multiple times. SATA is set to AHCI, Secure Boot is off, Fast Boot is disabled, TPM/SGX are off. However, I am on a very recent BIOS version (1.41.0). I know Dell BIOS updates can mess with Memory Attribute Tables (MAT) and CFG Lock.

What I Have Already Tried

I have spent hours tweaking the config.plist to fix the memory map, always resetting NVRAM between attempts. Here is what I’ve done:

1. CFG Lock: AppleXcpmCfgLock is set to True to bypass the Dell lock.
2. SetupVirtualMap: I have tried this on both True and False.
3. Legacy Memory Quirks: Tried EnableWriteUnprotector=True, RebuildAppleMemoryMap=False, SyncRuntimePermissions=False, and DevirtualiseMmio=False.
4. Modern Memory Quirks: Switched to EnableWriteUnprotector=False, RebuildAppleMemoryMap=True, and SyncRuntimePermissions=True. (Result: Crash).
5. Slide Argument: Enabled ProvideCustomSlide=True and added slide=0 to my boot-args.

My Questions

1. Is this [EB.LD.LKC|R.1] crash a known, common problem with this specific Dell v1.41.0 BIOS?
2. Have I exhausted my OpenCore memory quirk options, or is there a specific Dell Kaby Lake R combination I am missing?
3. Should I consider updating/downgrading the BIOS, or is there a way to patch the memory map via SSDT-AWAC or similar?

Any help or pointers would be massively appreciated. Thanks!