Did I put it back together wrong?
This is very detailed, please read careully. I tore down my late 2008 iMac, & installed a new video card. I hope we put it back together right because it had been several months since I had started it.
We put it back together & initially received a question mark at start up. A little later there was a pop up askinng if I waned to start from back up disk or download Yosemite again.
It won't let me do either because it can't find the hard drive. I installed a brand new hard drive 6 months ago. So what did we do wrong putting it back toether, if anythng?
My son helped & was a real pain in the butt! We even have screws leftover. Incidentally, my iMac is allowing me to get to this forum. My acccount is lady_cerridwyn, can't remember log in.