- Nov 6, 2012
- Asus Rampage IV gene Bios 4802
- GTX 670
- Classic Mac
- Mobile Phone
Well I'm not going to go past MacOs Yosemite with my build. Having a difficult time getting usb to even register on El Cap or Sierra. As soon as I get past a point in either installer I lose all usb ports. Mouse-Keyboard-bluetooth-usb installer. On sierra I captured this just before the screen garbled up with the infamous circle with a line through it appeared. Any Idea's would be wonderful.