You can install hard drives up to 12.5mm thick.

  1. Locate the battery release tab on the underside of the G4.
    • Locate the battery release tab on the underside of the G4.

    • Slide the battery release tab to the left and lift the battery out of the computer.

  2. Remove the seven T8 Torx screws from the lower case.
    • Remove the seven T8 Torx screws from the lower case.

    • Using your thumbs, slide the lower case toward the front of the computer.

    • The lower case may stick in the front on a tab just above the center of the optical drive. Be careful as you work the case off, or you may break the thin strip of plastic just above the drive.

    • Lift the lower case off.

    • Disconnect the hard drive ribbon from the logic board using a spudger or the tip of your finger.

    • To free the hard drive, remove the two T8 Torx screws from the right wall of the battery housing.

    • Remove the hard drive by lifting the left edge up and out of the computer.

    • There are four rubber bumpers that fit over the hard drive screws. Ensure that these bumpers come out when you remove the hard drive.

    • Your laptop should look approximately like this.

    • Remove the two black plastic bumpers and two T8 Torx screws from the side of the hard drive.

    • Grasp the orange ribbon cable and disconnect it from the hard drive. If the connector is tight, gently rock it from side to side.

    • Be sure to pull evenly on both sides as uneven force may damage the hard drive pins and render your data inaccessible.

    • If you are installing a new hard drive, we have an OS X install guide to get you up and running.


To reassemble your device, follow these instructions in reverse order.

39 other people completed this guide.

Attached Documents


Member since: 09/24/2009

1 Reputation

623 Guides authored


Easy to do; I have upgraded my Titanium 15 several times and it last ran from a 320gB HDD very successfully. Then it fell off my sofa just once too often... :-(

Oh well, after nine solid years of totally fault-free service (eat ya heart out Mr. Pee Cee!) it will be good for parts and may live on yet.

Shane - Reply

Excellent instructions and illustrations

I’m an amateur, and this was easy. Proceeding very deliberately, it took me 30 minutes. If I had to do it again, probably 10 to 15.

Thank you

lgof - Reply

View Statistics:

Past 24 Hours: 1

Past 7 Days: 9

Past 30 Days: 99

All Time: 29,162