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New hard drive will not format

Installed a new debate 500gb 7200 rpm 32mb cache SATA SSD Hybrid hard drive on a mid 2009 MacBook pro unibody. First question the screen is jumping with horizontal lines flashing different colors.

Problem 2: when I boot from original 10.6 disk and go to the disk utility to partition and format the new drive it says it is shows the new drive I select the single partition mac journaled and name it Macintosh hd and select apply. The status bar says unmounting disk it barber poles for a minute or so then give an error box that says "partition fIled with this error: POSX reports: the operation couldn't be completed cannot allocate memory

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I can't locate a "debate 500gb 7200", please give specifics on this drive.

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Sorry it is a Seagate 500gb ST MOM 7200RPM SATA/SSD Hybrid XT

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I know this post is old but I was having the same problem with my 2009 MBP and thought others may be too. Orignal HD quit and I couldn't boot under any mode. Oddly enough when I disconnected the HD and plugged it back in, it fully booted before crashing, then back to the original failure to boot every time after. I bought and installed a new SSD but wasn't able to format/erase due to the same "cannot allocate memory" error using Disk Utility or Terminal. After playing with the SATA cable a bit just to make sure it had good connections I was able to format the drive and install 10.6 with no problems. I think that would explain why unplugging the original HD and plugging it back in allowed it to boot once. It's been a day since I installed OSX on the new SSD and I haven't had any problems. I'm going to replace the SATA cable just to be sure, but I think this may be the problem for others with older MBPs who are trying install a new drive.

If you're having this problem trying formatting the new HD via a USB/SATA cable (instead of in your macs HD bay) before you return the drive or give up. Worst case you'll rule out the SATA connection, but this worked for me.

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This solution may work for you: http://reviews.cnet.com/8301-13727_7-104...

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this happens when your flat cable stops working. try conecting thru an USB adapter to confirm

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