Clover - Yosemite + Windows 7 - CSM problem with 280x

[escobol]

Hello,

My config:

Z77X-UD5H (bios ver. 16)
i7 3770k
280X x2 (Crossfire)

Yosemite with clover on one ssd - everything works fine (with CSM turned off).

Windows 7 on another ssd (UEFI - installed with CSM enabled)

Clover detects OSX and Win7.

With CSM enabled: Win7 works, OSX loading to blank/black screen (no gpu).
With CSM disabled: OSX works fine, Win7 hangs at loading.

Clover config:
Graphics - FB Name - Aji; Inject Intel; Inject ATI (checked PatchVBios, no change with on or off)
SMBIOS - MacPro3.1
Boot: dart=0; kext-dev-mode=1


Any help? I am thinking about turning off FBname or InjectATI - but i am afraid it will finish with no gpu at all with no way to go back.

EDIT. i got desktop with dual screen when i connect monitors to second card in crossfire... (how to change it in clover?)

 

[Going Bald]

R9 280X is OOB - no need to inject FB or inject ATI.
Start with removing these two from config.plist.
Are you booting Yosemite with Clover UEFI or Legacy mode?
How is Win7 installed - Legacy or UEFI?