Arifin Sarker posted a question in Hackintosh YosemiteHi! I'm new on this forum. I install "Niresh's Yosemite with AMD & Intel" with USB pendrive. Using this Guide https://www.hackintosh.computer/42/yosemite-zone-guide/ But i can't then i use boot flag "-v -x nv_disable=1" and Succes on install after that i install "MacPois0n ::The Extreme Post-Installation Utility Version v1.4" , "Fix OS X Yosemite UserEventAgent High CPU Usage Problem", and then "Nvidia WebDriver-343.02.01f01" But when i select NVIDIA Web Driver as Default Graphics Driver i Can't Boot with out Boot flag "nv_disable=1" (If i Dont Use Any Boot Flag Then after the hakintosh zone logo my monitor show no signal and i try to solve this issu using ur this Guide "https://www.hackintosh.computer/64/hackintosh-grey-black-white-screen/"but after that i cant change my Defualt Graphics Driver to Nvidia) and My PC is way too much slow and my screen resolution is 1024 x 768 but my monitor is Full HD 1080p so please can you Please Guide me for way out from this slow speed and Graphics Card Issu. and give me and UP and Ruuning Fast Hackintosh. My Build Specs Motherboard: GIGABYTE GA-Z97X-Gaming G1 WIFI-BK LGA 1150 Intel Z97 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard CPU: Intel Core i7-4790K Haswell Quad-Core 4.0GHz LGA 1150 Desktop Processor Intel HD Graphics 4600 BX80646I74790K GPU: GIGABYTE GV-N970G1 GAMING-4GD GeForce GTX 970 4GB 256-Bit GDDR5 PCI Express 3.0 SLI Support Video Card RAM: Team Vulcan DDR3 8GB 2400 X2 = 16 GB Power Supply: CX750 — 80 PLUS® Bronze Certified Power Supply SSD: Transcend 2.5" SATA III 6Gb/s SSD370 (Premium) 265 GB HDD: WD Green 2 TB Optical Drive: Samsung DVD-RW FireWire Card: 4 Port PCI 1394a FireWire Adapter Card Please Help Me.