mid 2007 iMac with new internal hard drive will not format

Hey all,


I recently acquired a mid 2007 iMac 2.0 Ghz Intel Core 2 Duo from a relative. After having it about a week, the hard drive went completely dead. At least that is what I assumed was wrong since when I tried to boot it from any of my 3 different OS disks (10.4, 10.5, 10.6), no hard drive would show up at all even in disk utility. So I purchased a Seagate Barracuda ST31000524AS 1TB 7200RPM HDD to replace it. After my first installation, the computer still wouldnt recognize the drive so I intitially thought it might be a faulty hard drive but after some research I discovered that these drives are configured to operate at 3Gbits/sec unless there is/you install a jumper on 2 of the pins before installation. With this jumper installed, it limits the drive to 1.5 Gbits/sec to be compatible with older motherboards (like mine). After booting up on the installation disk, it now detects the drive, but when I try to partition it with 1 partition with Options> GUID; Format>Mac OS Extended (journaled) I get an error saying, "POSIX reports: The operation couldn't be completed. Input/output error". I'm at my wits end with this darn thing and am about to deploy so I really would like for my wife to have a computer so we can iChat while I'm gone. Any help would be greatly appreciated.

iMac, iOS 6

Posted on Sep 20, 2012 10:36 PM

Reply
13 replies

Sep 21, 2012 12:58 PM in response to calebj415

No problem, I've just seen more reports of problems with Seagate drives than others, which of may have nothing to do overall with drive reports.


Could this be an older model, Seagate seems to think it's 6 Gb/s also...


http://www.seagate.com/internal-hard-drives/desktop-hard-drives/barracuda/?sku=S T31000524AS


As does Newegg & several others...


http://www.newegg.com/Product/Product.aspx?Item=N82E16822148697

Sep 21, 2012 1:42 PM in response to calebj415

Hello,


You Might want to see what OS came with the Computer Some Older Mac Os X versones will not work on some newer macs. Did you get the Installation disk from Your family member. You can try and start up the computer from the Mac Os X installer Disk by Holding Command C when you start up the computer and wait for the chip that macs like to make when the start up. then run disk frist aid it will tell you if your hard drive is dead or not . If you are running Mac Os 10..7 Or 10.8 Use Command R at start up the same way is Command C used to work and run disk frist aid is now called Disk Utiltiy. this will still work the same way to check your hard drive an it will tell you if it dead or not. You can reformate the hard drive from here to. Hope this helps.

Sep 22, 2012 2:07 PM in response to BDAqua

It may be capable of 6Gb/s but those sites also say that it can go 1.5 or 3 so that shouldn't be an issue. Or am I wrong? Maybe I'm going about this whole process wrong? From what I've found online it seems that when you install a new boot drive, you install it, partition it for 1 partition, then install OS correct?


And dmbrown since I have no operational hard drive ATM, I have to choice but to boot off the disks and use disk utitlity to try to fix the issue.


Should I just return this thing and get a new one or maybe a different brand?

Sep 22, 2012 2:23 PM in response to BDAqua

According to your earlier reply, you said my model of Mac should be able to operate at the 3 Gb/s that seagate says it will do without the jumper in place, but you informed me that it can also operate at 6Gb/s and when I tried it that way it did not read at all. I guess my question is can I squeeze more speed out of it? And if so, how? Right now I've got the jumper in and it seems to be installing the OS just fine but if I could make it run faster....

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mid 2007 iMac with new internal hard drive will not format

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