Mid 2006 / model number A1181 / black or white case / 1.83 or 2.0 GHz Intel Core Duo processor.

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replacement hard drive AT111

my original hd just crashed. It is listed as SATA.

can I install a 1tb Toshiba AT 111 in it's place?

any connector issue?

Answered! View the answer I have this problem too

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Please give us better information on this Toshiba.


thank you for your response,

here are the specs

Product Height 0.4"

Product Width 2.75"

Product Weight 4 oz.

Product Depth 3.9"

Internal or External Internal

Drive Capacity 1TB

Drive Connectivity Serial ATA III

Rotation Speed 5400 rpm

Data Transfer Rate to/from Interface Up to 6 Gbps

Average Seek Time 12 ms

Cache Buffer Size 8MB

System Requirements PC: Windows 98 SE, Me, 2000, XP or Vista; Mac: OS X; Linux

Laptop or Desktop Laptop


New 1 Tb drive installed, partitioned into 2 segments and working fine.

I assume that the drive auto negotiated transfer rate.

Thanks to all for help.


Glad we could be of help ;-)


drive worked fine..I think it auto negotiated transfer speed.

thank you everyone for your help


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2 Answers

Chosen Solution

This drive is a 6 Gb/s speed drive. Your Mac most likely has a 1.5 Gb/s bus speed. You will most likely need to jumper it down in speed for Disk Utilities to recognize it.

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You are correct. Bus speed is 1.5Gb/s

New drive arrives next week and I will install it.

If I need to change jumpers, which jumpers?

Perhaps the answer will be with the Toshiba drive instructions?


I need the model number of the drive to be able to look that up.


Toshiba Model: PH2100U-1I54 • SKU: 6915678 (1Tb )


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as long as its formatted correctly any hd will work

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thank you for your response.

I expect to receive the new drive next week and will publish result.


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bill0 will be eternally grateful.
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