I've used your DSDT patch and CHIPSET SERIES 5, 6, 7, 8, 9 (EFI)
But Still Graphic only showing 5MB. also I have NVIDIA GeForce GTX 750 Ti Graphic, Multi-Monitor Not working.
My Space -
Processor: intel core i7-4790 CPU
Processor Graphics - Intel® HD Graphics 4600
Motherboard: H97-PLUS
Extra Graphic: NVIDIA GeForce GTX 750 Ti
Thank you so much for your kind of help.
Looking forward
Send me Orels-iMac.zip