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Removing and Replacing the Rear Cover in HP Omni 27-1000 Series Desktop PCs

This document applies to HP Omni 27-1000 series desktop computers.
HP Omni 27-1000 series desktop computer
Before you begin
  • You need a Phillips head screwdriver.
  • Remove all CDs and DVDs from the optical drive.
  • Turn off the computer, and disconnect all cables. Be sure to disconnect the network cable before disconnecting the power cord.
  • Transfer the computer to a clear, flat, stable work surface over a non-carpeted floor.
  • Place the computer face-down on a soft flat surface. HP recommends that you place the computer on a blanket, towel, or other soft cloth to protect the touch screen surface from scratches or other damage.
  • Do not remove a component from the protective packaging until you are ready to install it.
  warning:
Make sure the computer is disconnected from power before starting.
  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 and replacing the rear cover
Remove the rear cover to access the internal components.
Removing the rear cover
Use the following steps to remove the rear cover.
Step 1
Place the computer face down on a table with the stand overhanging the table edge.
Placing the computer face down
Step 2
Remove the VESA cover from the middle of the back cover.
Removing the VESA cover
Step 3
Loosen each of the three captive Phillips head screws for the rear cover - two on the bottom corners and one in the center of the cover - until you hear the screw make a clicking sound five times.
Removing the VESA cover
Step 4
Pry up on the bottom edges of the rear cover, and then work the rest of the cover free from the computer.
Removing the rear cover
Replacing the rear cover
Use the following steps to replace the rear cover:
Step 1
Find the small tabs on the outer edge of the rear cover.
Finding the tabs
Step 2
Find the outer lip of the front bezel.
Outer lip of the front bezel
Step 3
To replace the rear cover, align the cover onto the unit. Press the cover firmly until all tabs have snapped into place.
  note:
The bottom edge will not be flush against the bottom edge of the outer ring trim.
Replacing the cover
Step 4
Replace the center screw.
Replacing the center screw
Step 5
Tighten the two captured screws on the rear cover until the bottom edges of the rear cover are flush against the edge of the outer ring of the bezel.
Tightening the screws
Step 6
Replace the VESA cover.
Replacing the VESA cover

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