UEFI P-State error fresh install to new HD Mavericks install still works

[the_chiefgeek]

p-state stepper error 18 at step 2

I picked up a new HD and decided to do a fresh install of Yosemite using unibeast+multibeast 7.1.1

The install went very smooth. I booted into Yosemite via unibeast USB and ran Multibeast (DSDT Free)

At reboot I got boot0 error. I booted into installer, unmounted disk and installed boot1h from usb stick to HD.

Reboot and I get the P-State error. I tried different smbios, imac11,1 imac12,1 imac12,2 and no luck.

I am not overclocking.

 

[P1LGRIM]

p-state stepper error 18 at step 2

I picked up a new HD and decided to do a fresh install of Yosemite using unibeast+multibeast 7.1.1

The install went very smooth. I booted into Yosemite via unibeast USB and ran Multibeast (DSDT Free)

At reboot I got boot0 error. I booted into installer, unmounted disk and installed boot1h from usb stick to HD.

Reboot and I get the P-State error. I tried different smbios, imac11,1 imac12,1 imac12,2 and no luck.

I am not overclocking.

Try NullCPUPowerManagement.kext from Multibeast - Drivers - Misc

Good Luck

 

[the_chiefgeek]

I am no longer getting the P-State error but I still can't boot.

now it gets to the point of initializing the video and then reboots.