Upgraded carbon copied hard drive but unrecognized.
I replaced my 500gb hard drive with a tb one and used carbon copy cloner so that I could run it immediately after installing the new one. When I turn the imac on the computer doesn't recognize it so I connected that drive with a USB adapter and it booted from that. I stuck that one back inside and basically carbon copied to a separate external tb drive to have something to run the computer that wasn't flimsy and as accident prone and have been running from that ever since. Every time I reboot it tells me it doesn't recognize the drive I installed inside. I've given up for a while because I figured the issue is maybe a connector inside that I may have damaged during the installation? Now that I can probably afford the part (if that's the issue) I would like to order it. No clue how to find it. I've been running my imac solely off an external drive and I'm really tired of wasting 2 outlets and of course the speed that I'm losing because of it.