Model A1225 / Mid 2007 and Early 2008 / 2.4, 2.8, or 3.06 GHz Core 2 Duo processor

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How can I get my system to recognize my stock internal HD?

Recently, my iMac stopped recognizing my internal hard drive (the stock one, never replaced). I'm able to boot from an external hard drive, but not from the internal hard drive, which I can't see in Disk Utility either. There are no errors or anything, it's just not there. I can see the SATA controller in System Profiler, but it's not recognizing any devices. How can I fix this?

When searching around, I saw similar scenarios, but with MacBook Pros, where the solution was usually to replace the SATA cable. Is SATA cable failure also probable for iMacs? Even if it is, is there anything else I can try first, software-wise? Also, if the hard drive was damaged, would it give some kind of error or could it also disappear silently? Thanks in advance.

Answered! View the answer I have this problem too

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Hard drives usually give signs, but many don't recognize them as such. Noise, stalling, beach balls, strange or slow start up are general indicators. but, like anything electronic, they can also just suddenly stop working.

Since you'll need a new HD I would start there, if the new HD is not recognized to be formatted and have the OS installed or restored, then I might start thinking about a cable issue.

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