Recent content by toycruiser

I struggled with this problem for more than a week you need to short the cmos to getting everything working again I did exactly what you did had it working then as soon as it power cycled back to the blinking cursor You short pins 1 and 6 with both ends of a paperclip and hold it while powering...

either upgrade the bios or run a boot drive with mavericks so you can troubleshoot the yosemite install Can you get through the logo on the boot disk? when i was troubleshooting i had two boot drives and made a usb install disk with unibeast and one with clover to track down the problems

You have to eliminate various issues 1. What firmware? are you UEFI? 2. Did you remove the video card and boot with internal intel graphics? When I upgraded I kept mavericks drive and installed yosemite on new drive that way if i had issues like this i could troubleshoot from mavericks with...