Chosen Solution
Just replaced the HDD with a known working one. It is not being recognized. When I start up from a dock unit has no problems, but does not show the newly installed drive. Unit works fine from the external dock (drive). I have apple service manual and have viewed you replacement video. From what I can tell the drive is properly installed and everything plugged in properly. So what am I missing, or where should I be looking? Not my first rodeo… and as you know these units are a bear!
Looks about this vintage: Apple iMac “Core 2 Duo” 2.16 20-Inch Specs Identifiers: Late 2006 - MA589LL - iMac5,1 - A1207 - 2118 The drive has to be formatted. Boot up from your original system installation disk, go to the second page pull down menu to Utilities > Disk Utility and format it. Then install a system.
