Can't reach the installer after "boot OS X installer From Macintosh HD" i set my boot flags to -v and the error I was getting is "Missing Bluetooth Controller Transport!" never had this issue before?
That error is not an El Capitan error, it is a Clover error. Would have occurred with the Yosemite install.
Fix: Clover Installer, select drivers64UEFI/OsxAptioFix2Drv-64.efi
Sadly that didn't seem to work. I'm getting no power through USB 2.0 headers as soon as OSX boots even with the patch you provided. My BIOS settings are all correct based on previous Clover guides for this board, and I was running 100% on Yosemite.
Make sure you boot using the nv_disable=1 boot flag until you reinstall the NVIDIA web drivers.