[HELP] Niresh Distro works,Vanilla gives Still waiting for root device error

So yeah,pretty much what the title says. I tried many kexts and flags like USBBusFix=Yes. My MOBO is : HP 0AACh

CPU : Intel Core 2 Quad Q9500

GPU : AMD Radeon HD 6570 (Will be switching it out for a compatible Nvidia card)