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Removing and Replacing the Back Covers in HP Pavilion All-in-One and HP Omni 200-5000 Series Desktop PCs

This document applies to HP Pavilion All-in-One 200-5000 series all-in-one desktop computers.
HP Pavilion All-in-One 200-5000 series all-in-one desktop computer

Before you begin

  • 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 noncarpeted 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 non-carpeted 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.

Removing and replacing the hinge door

Remove the hinge door to access the internal components. This door is above the stand in the center of the computer.
Removing the hinge door
Use the following steps to remove the hinge door.
Step 1
To remove the hinge door, use your fingers or a flat head screwdriver to pry the cover off.
Prying off the hinge door
Step 2
Lift the hinge door off and away from the computer.
Removing the hinge door
Replacing the hinge door
Use the following steps to replace the hinge door:
Step 1
Find the two small notches on the hinge door.
Finding the two tabs
Step 2
Find the metal rails inside the computer.
Finding the two slots
Step 3
Align the notches on the hinge door with metal rails on the back of the computer.
Replacing the panel
Step 4
Press down until the door snaps into place.
Pressing down to snap the door into place

Removing and replacing the hard drive door

Remove the hard drive door to access the hard drive and most internal components. This door is on the left side of the computer as you face the back of the unit.
Removing the hard drive door
Use these steps to remove the hard drive door:
Step 1
To remove the hard drive door, first remove the hinge door.
Lifting off the back cover
Step 2
Slide the hard drive door to the side.
Sliding the hard drive door to the side.
Step 3
Pull the door off the computer.
Removing the door
Replacing the hard drive door
Use the following steps to replace the hard drive door:
Step 1
Find the three tabs on the hard drive door.
Finding the tabs
Step 2
Find the three slots on the back of the computer.
Finding the three slots
Step 3
Align the tabs on the door with the slots on the back of the computer.
Replacing the panel
Step 4
Slide the panel into place.
Sliding the panel into place
Step 5
Replace the hinge door.
Pressing down to snap the door into place

Removing and replacing the RAM door

Remove the RAM door to replace the system memory and other system components.
Use the following steps to remove the RAM door:
Removing the RAM door
Step 1
To remove the RAM door, first remove the hinge door.
Removing the hinge door
Step 2
Slide the RAM door out to the side.
Sliding the RAM door
Step 3
Remove the door from the computer.
Removing the RAM door
Replacing the RAM door
Use the following steps to replace the RAM door:
Step 1
Find the two tabs on the left side of the RAM door.
Finding the tabs on the RAM door
Step 2
On the right side of the computer, find the slots for the RAM door.
Finding the slots for the RAM door
Step 3
Align the tabs on the RAM door with the slots inside the computer.
Aligning the RAM door
Step 4
Push in the RAM door until secure.
Pushing in the RAM door
Step 5
Replace the hinge door.
Pressing down to snap the door into place

Removing and replacing the postponement door

Remove the postponement door to access the internal components.
Removing the postponement door
Use the following steps to remove the postponement door:
Step 1
To remove the postponement door, first remove the hinge door, the hard drive door, and the RAM door.
Removing the RAM door
Step 2
Remove the three screws for the postponement door.
Removing the three screws
Step 3
Lift up the bottom of the door.
Lifting the bottom of the door
Step 4
Carefully pry the cover off of the unit.
Removing the postponement door
Replacing the postponement door
Use the following steps to replace the postponement door:
Step 1
Find the tabs at the top edge of the postponement door.
Finding the tabs
Step 2
Find the slots for the door in the top of the rear panel.
Finding the slots in the top of the rear panel
Step 3
Find the small tab on the side of the cover.
Finding the tab on the side of the cover
Step 4
Find the slot on the side of the computer.
Finding the slot on the side
Step 5
Align the tabs on the top of the door with the slots under the top lip on the computer.
Aligning the tabs and slots
Step 6
Swing the cover down.
Swinging the cover down
Step 7
Press the side tab into its slot.
Pressing the side tab into place
Step 8
Replace the three screws that secure the cover to the computer.
Replacing the three screws
Step 9
Replace the hard drive door, the RAM door, and the hinge door.
Pressing down to snap the door into place

Removing and replacing the rear I/O cover

To access many system components, remove the rear I/O cover.
Removing the rear I/O cover
Use the following steps to remove the rear I/O cover:
Step 1
To remove the rear I/O cover, first remove the hinge door, the hard drive door, the RAM door, and the postponement door.
Removing the postponement door
Step 2
Remove the two screws for the rear I/O cover.
Removing the screws for the rear I/O panel
Step 3
Lift up on the I/O cover.
Lifting up on the I/O cover
Step 4
Pull the I/O cover out of the computer.
Pulling the I/O cover  out of the computer
Replacing the rear I/O cover
Use the following steps to replace the rear I/O cover:
Step 1
Find the tabs on the bottom of the rear I/O cover.
Finding the tabs on the I/O cover
Step 2
Find the slots inside the I/O area of the computer.
Finding the slots
Step 3
To replace the rear I/O cover, slide the tabs under the lip inside the I/O area.
Sliding the tabs under the lip
Step 4
Press on the cover until it snaps into place.
Pressing on the cover
Step 5
Replace the postponement door, the hard drive door, the RAM door, and hinge door.
Pressing down to snap the door into place

Removing and replacing the rear cover

To access many system components, remove the rear cover.
Removing the rear cover
Use the following steps to remove the rear cover:
Step 1
To remove the rear cover, you must remove the stand. To remove the stand, first remove the hinge door above the stand.
Removing the hinge door
Step 2
Remove the four screws that fasten the stand to the computer.
note:
The screws for the stand are a special long screw.
Removing the screws for the stand
Special screws for the stand
Step 3
Slide the stand up.
Sliding the stand up
Step 4
Tilt the stand up and remove it from the computer.
Removing the stand from the computer
Step 5
Remove the hard drive door, the RAM door, the postponement door, and the rear I/O cover, as shown in the other sections of this document.
Removing the RAM door
Step 6
To remove the CD/DVD drive, remove the screw securing the drive to the computer.
note:
The screw for the CD/DVD drive is a special long screw.
Removing the screw for the CD/DVD drive
Screw for the CD/DVD drive
Step 7
Use the access hole to push the CD/DVD drive out to the side.
Pushing the CD/DVD drive to the side
Step 8
Pull the CD/DVD drive out of the computer.
Pulling the CD/DVD drive out of the computer
Step 9
Remove the two screws at the top of the rear cover.
note:
You will need a slender screwdriver to access the top screws.
Removing the screws at the top
Step 10
Remove the screw at the side of the unit.
Removing the screw on the side
Step 11
Pry up on the top edge of the rear cover.
Prying up on the top edge of the cover
Step 12
Remove the cover from the computer.
Removing the cover from the computer
Replacing the rear cover
Use the following steps to replace the rear cover:
Step 1
Find the tabs along the outer edge of the cover...
Finding the tabs on the cover
...that fit under the outer lip of the front bezel.
Finding the slots on the front bezel
Step 2
To replace the rear cover, align the cover onto the computer.
Aligning the rear cover
Step 3
Press down firmly on the cover until all of the tabs have snapped into place.
Pressing down on the cover
Step 4
Replace the CD/DVD drive by sliding the drive into the computer.
Sliding the CD/DVD drive into the computer
Step 5
Align the screw hole at the edge of the drive with the screw hole inside the computer.
Aligning the drive in the computer
Step 6
Replace the special long screw that secures the CD/DVD drive in the computer.
Replacing the screw for the CD/DVD drive
Step 7
Replace the screw on the side of the computer.
Replacing the screw on the side
Step 8
Replace the two screws at the top of the computer.
Replacing the screws at the top
Step 9
Replace the rear I/O cover, the postponement door, the RAM door, and the hard drive door, as shown in the other sections of this document.
Sliding the RAM door
Step 10
Next, replace the stand. Find the long slot in the middle of the stand.
Finding the tabs on the I/O cover
Step 11
Find the tab for the stand inside the computer.
Finding the tab inside the computer
Step 12
To replace the stand, align the middle slot over the tab...
Aligning the stand
... and slide the stand down until the tab is at the top edge of the slot and the stand is secure.
Sliding the stand into place
Step 13
Replace the four screws that secure the stand to the computer. Use the same four screws that were removed previously.
Replacing the screws for the stand
Step 14
Replace the hinge door.
Replacing the hinge door

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