S.M.A.R.T. error > New hard drive gives flashing question mark
I've read around on the site, and I THINK this is what I need to do. Would love if someone could confirm so I can go ahead and buy the parts without them going to waste!
Situation
- My iMac broke down on me.
- When I start it up, I get a blinking folder with a question mark.
- If I wait about 5 minutes, it loads to recovery mode, and it says my internal Seagate 1TB HDD has a S.M.A.R.T. error (which I now know means the drive is breaking down).
- I bought a new WD HDD, replaced it with instructions from ifixit.com (ignoring the thermal sensor plug because there's no slot for it on the new HDD).
- When I start up the iMac again, I simply get a flashing folder with a question mark on it. I can't get into recovery mode or do anything else.
My Understanding
From reading a lot of the Q&A on this site, it seems like:
- I need to get the OWC thermal sensor cable (https://eshop.macsales.com/item/OWC/DIDI...)
- I need to get a HDD that is SATA II compatible, like the ST1000LM014 Seagate SSHD (https://www.amazon.com/dp/B00B99JUBQ/ref...)
Questions
- Is my main problem simply that my new drive does not support SATA II? Is that why I can't get past the flashing question mark folder nor get into recovery mode?
- Does NOT having the sensor cable affect the iMac from starting up? Or does it only cause the fan to rotate at full speed all the time?
Thank you!
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Here's your systems specs: iMac 21.5" 3.33 GHz Core 2 Duo (Late 2009)
por Dan