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Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Cannot erase format install OS

Old hard drive failed. Ordered new Toshiba 320 GB hard drive and installed. Attempted to install OS X on new drive. Cannot erase or partition drive. I get the error: Cannot Allocate Memory.

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Check your SATA cable connections - it's possible you may need to replace the SATA cable if you damaged it taking out the old HDD.

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Thanks... I was very careful with the cable during the fix....but I have ordered new cable. We'll see what happens. Hoping, at this point, that it was/is a bad cable originally...that way I end up with an extra HDD.

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It could be - others have reported that sequence of events... if you have an extra working drive you can not return put it in an external case and use it as a backup drive.

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