SAPPHIRE TOXIC HD 4870 not fully recognised in Mountain Lion (10.8)

[leccestar]

Hi there,

Here are the details of my system:
MB : GA-p55A-UD6 [F12(c)]
HD : 128GB Kingston SSD
CPU : Intel® Core™ i5-750 Processor (8M Cache, 2.66 GHz)
Gfx : SAPPHIRE TOXIC HD 4870 1G GDDR5 PCI-E

After installing ML and using Multibeast for a while I couldn't boot without using GraphicsEnabler=No. It was also not recognising the graphics card at all. I installed EVOEnabler.kext and the card is now showing up like this: Graphics ATI Radeon HD 4870 3 MB. The only resolution I can get is: 1024 x 768.

ATI Radeon HD 4870:

Chipset Model: ATI Radeon HD 4870
Type: GPU
Bus: PCIe
Slot: Slot-1
PCIe Lane Width: x16
VRAM (Total): 3 MB
Vendor: ATI (0x1002)
Device ID: 0x9440
Revision ID: 0x0000
ROM Revision: 113-B7710C-176
EFI Driver Version: 01.00.318
Displays:
Display:
Resolution: 1024 x 768
Pixel Depth: 32-Bit Color (ARGB8888)
Main Display: Yes
Mirror: Off
Online: Yes

I would really appreciate anyone who can help as this is the only problem standing between me and a fully functional hackintosh.

 

[leccestar]

I tried to use the patch from the old Multibeast and now my machine boots to a bright white screen

Has anyone got any insight to share to help overcome this?

 

[ume2]

try boot up with PCIRootUID=1