RehabMan
Moderator
- Joined
- May 2, 2012
- Messages
- 181,015
- Motherboard
- Intel DH67BL
- CPU
- i7-2600K
- Graphics
- HD 3000
- Mac
- Mobile Phone
But I use the same USB. Why the same USB can boot into desktop in step 3, but failed in step 5
Likely you have mismatch between kexts installed and ACPI patches active.
It depends on the version you're running even...
Since you mention "OS X" (not macOS), I assume you're running 10.11.6. In that case, you'll have IntelBacklight.kext installed which requires the PNLF. A significant delay in boot will happen if you have IntelBacklight.kext loading, but ACPI is not patched for PNLF. It will eventually boot, but may take a couple of minutes as things timeout.