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Adding or Replacing a Hard Drive in HP Omni 120-1000 Series Desktop PCs

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This document applies to HP Omni 120-1000 series desktop computers.
HP Omni 120-1000 series desktop computer
Use the steps in this document to help replace a hard drive in your computer. If you want to add a hard drive with more capacity (upgrade), know that you can upgrade to any sized hard drive that meets the connection type in your computer. Most often this is serial ATA (SATA or eSATA). Also know that there are formatting limitations that may be encountered for drives larger than 2 TB. To access all the data on drives larger than 2 TB format the drive using GPT or create multiple partitions smaller than 2 TB.

Before you begin

  • Turn off the computer and disconnect all cables.
  • Transfer the computer to a clean, flat, stable work surface over a noncarpeted floor. HP recommends that you put down a blanket, towel, or other soft cloth to protect the screen from scratches or other damage.
  • Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards and other components. HP strongly recommends the use of an antistatic wrist strap and a conductive foam pad when working on the computer.
  • Do not remove a component from its protective packaging until you are ready to install it.
CAUTION:This product contains components that can be damaged by electrostatic discharge (ESD). To reduce the chance of ESD damage, work over a noncarpeted floor, use a static dissipative work surface (such as a conductive foam pad), and wear an ESD wrist strap connected to a grounded surface.

Video overview

View the following video before using the steps in this article.
NOTE:For best quality on dial-up connections, wait until the video has fully loaded before viewing.

Removing the hard disk drive

Use these steps to remove the hard disk drive:
Step 1

To remove the hard drive, first remove the back cover.

For instructions to remove the back cover, see the HP support document, Removing and Replacing the Back Cover .
Removing the hard drive door
Step 2

Loosen the captive screw for the hard drive.
Loosening the screw
Step 3

Grasp the hard drive handle and slide the hard drive to the side.
Sliding the hard drive to the side
Step 4

Lift the drive and remove it from the computer.
Removing the hard drive from the computer
Step 5

If replacing the hard drive, remove the four screws on the sides of the hard drive cage, two on each side.

NOTE:The hard drive screws are different than screws used for other system components, so keep the screws and grommets in a safe place.
Removing the screws
Step 6

Slide the drive out of the cage.
Sliding the hard drive out of the cage

Replacing the hard disk drive

Use these steps to replace the hard disk drive:
Step 1

Before installing a hard drive in the cage, make sure there is a rubber grommet in each side hole of the drive cage.

Install a new grommet into any hole missing a grommet.
Checking the cage for grommets
Step 2

Slide the drive into the cage...
Aligning the hard drive in the cage
... until the screw holes on the side of the drive and the cage align. Aligning the hard drive in the cage
Step 3

Replace the four screws to secure the drive in the cage, two on each side.
Replacing the hard drive screws
Step 4

Find the four tabs on the underside of the drive cage.
Finding the tabs on the drive cage
Step 5

Find the slots for the tabs inside the computer.
Finding the slots in the computer
Step 6

Align the tabs on the cage near the slots, and then slide the hard drive in until it is secure.
Inserting the drive
Step 7

Press down on the cage handle.
Pressing down on the handle
Step 8

Tighten the captured screw to secure the hard drive in the computer.
Tightening the screw
Step 9

Replace the back cover.

CAUTION:MBR or NTFS partitions are limited to 2 TB (without using dynamic disks and volume sets). If you are installing a hard drive that is 2 TB or greater, HP recommends formatting the drive using GPT partitions.

For instructions to replace the back cover, see the HP support document, Removing and Replacing the Back Cover .
Replacing the back cover

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