How to Fix Slow Boot Times after RAM Upgrade (Hackintosh)

Resolving 4-Minute Boot Times on Haswell Systems

If your Hackintosh boot time jumped from 30 seconds to 4 minutes after upgrading to 16GB of RAM, you are likely hitting a Memory Mapping conflict in OpenCore.

The Technical Fix:

1. XMP Profile: Ensure XMP is enabled in your Dell BIOS. Even if locked at 1333MHz, the XMP profile provides the correct sub-timings that macOS expects.
2. Rebuild Memory Map: In your config.plist, under UEFI > Quirks, ensure RebuildAppleMemoryMap is set to True. This is critical for Haswell systems when the physical RAM layout changes.
3. SyncTableIds: If using a Dell Inspiron, try setting SyncTableIds to True under ACPI > Quirks. This helps the OS align the new memory addresses with the ACPI tables.
4. Clean NVRAM: Always reset NVRAM after changing hardware to clear old memory descriptors.