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:
- 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.
- Rebuild Memory Map: In your
config.plist, underUEFI > Quirks, ensureRebuildAppleMemoryMapis set to True. This is critical for Haswell systems when the physical RAM layout changes. - SyncTableIds: If using a Dell Inspiron, try setting
SyncTableIdsto True underACPI > Quirks. This helps the OS align the new memory addresses with the ACPI tables. - Clean NVRAM: Always reset NVRAM after changing hardware to clear old memory descriptors.
Original Question: "Insane boot times after ram change"
Insane boot times after ram change
I recently got new ram from eBay and soon I'm getting other parts for my hackintosh as well, I'm using a dell inspiron 3847, a pretty old haswell based pc with an i5-4440 and integrated graphics (upgrading this week), the new memory I put in it was Kingston HyperX blu. DDR3 1600mhz (1333mhz locked) (2x8gb), and the old memory was from sk hynix (1600mhz) (2x4gb) the boot times seem to be severely more slow, the old boot times were pretty quick, around 15-30 seconds, now it jumped to like 4 minutes, I really need help because this is really bothering me a lot
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