How to Add a Second SATA Hard Drive to a Dell Dimension 9100 Computer

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How to Add a Second SATA Hard Drive to a Dell Dimension 9100 Computer
Install a second hard drive in your Dimension 9100. (hard drive image by Graham Lumsden from

The Dell Dimension 9100 computer uses SATA hard drives, the latest hard drive connection standard, which offers higher data transfer speeds over the older standard, IDE. If you want to install a second SATA hard drive in your Dimension 9100, you can do so easily with just a screwdriver, hard drive and data cable.

Skill level:

Things you need

  • Phillips screwdriver
  • Hard drive
  • Hard drive data cable

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  1. 1

    Turn off your computer and remove all cables from the back of it. Lay the computer down on its left side (as viewed from the front of the computer) and locate the cover release latch on the back of the computer, near the right side of the computer. Press this latch to release the right side door of the computer, which can then be lifted off.

  2. 2

    Locate the primary hard drive in the front of the computer, and then locate a free drive bay underneath the primary drive. Remove the rails from this drive bay and secure them to your hard drive using the captive screws contained within the rails. Slide the hard drive into the drive bay once it is secured to the rails.

  3. 3

    Attach one end of the hard drive data cable to the back of the hard drive. Connect the other cable to a free SATA connector on the motherboard. The best place to connect it is right next to the cable from your primary hard drive is connected to the motherboard.

  4. 4

    Attach a free power cable from your power supply to the back of the hard drive. Ensure that both this power cable and the data cable are securely fastened.

  5. 5

    Close the computer case, reattach the cables to the computer and then turn it on. You can now use the new hard drive.

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