How to Add an Extra Drive in a Dell Precision 490

Written by dean lee
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How to Add an Extra Drive in a Dell Precision 490
Adding an extra drive in a Dell Precision 490 is easy if you know where to put it. (hard drive image by BigDog from

A Dell Precision 490 is a workstation computer and is configurable as either a desktop, or horizontally, or as a tower, or vertically. Regardless of the configuration, the hard drives are installed in the same location. The Dell Precision 490 supports two hard drives.

Skill level:
Moderately Easy


  1. 1

    Unplug the computer and remove the right side panel to access the inside.

  2. 2

    Disconnect the power and data cables from the back of the current hard drive. The rotatable carrier towards the bottom, middle of the case contains the hard drive.

  3. 3

    Rotate the rotatable carrier up by simultaneously pushing the tab that is on the bottom of the power supply in the upper right-hand side of the computer case down, then rotating the retention mechanism down until it snaps onto the hard drive carrier. Pull the top of the rotatable carrier towards you to rotate it up.

  4. 4

    Press the blue tabs in the empty hard drive bay towards each other and then pull them out of the bay. This is the hard drive bracket.

  5. 5

    Push the sides of the hard drive bracket apart and slide the new hard drive into the bracket. Insert the hard drive with the label up and the connectors on the same side as the blue tabs of the hard drive bracket.

  6. 6

    Slide the hard drive with the brackets into the empty hard drive slot until it clicks into place. The side of the bracket without the blue tabs goes into the empty slot.

  7. 7

    Rotate the hard drive carrier down, and then rotate the retention mechanism down until it clicks onto the tab on the power supply.

  8. 8

    Connect the power and data cables to both hard drives.

  9. 9

    Close the computer case.

Tips and warnings

  • Touch a piece of metal to avoid damaging the computer from static shock.

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