6.Remove the screw that secures the VESA frame cover, slide the VESA frame cover to the bottom of the computer, and then lift it up to remove it from the VESA frame.

Figure 10. Removing the VESA frame cover

7.To reinstall the VESA frame cover, align the screw hole in the VESA frame cover with the corresponding hole in the VESA frame and then install the screw to secure the VESA frame cover.

What to do next:

•To work with another piece of hardware, go to the appropriate section.

•To complete the installation or replacement, go to “Completing the parts replacement” on page 52.

Removing or reinstalling the VESA frame

To remove or reinstall the VESA frame, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up.

3.Remove the computer cover. See “Removing the computer cover” on page 15.

4.Remove the rear I/O assembly cover from the rear I/O assembly. See “Removing or reinstalling the rear I/O assembly cover” on page 19.

5.Remove the frame stand or lift stand. See “Removing or reinstalling the frame stand” on page 16 or “Removing or reinstalling the lift stand” on page 17.

6.Remove the VESA frame cover. See “Removing or reinstalling the VESA frame cover” on page 20.

7.Disconnect the thermal sensor cable from the system board. See “System board part and connector locations” on page 12.

Chapter 2. Installing or replacing hardware 21

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Lenovo 3265, 3091, 4285, 870, 852, 800, 5205, 5248, 3678 Removing or reinstalling the Vesa frame, Removing the Vesa frame cover
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852, 800, 3091, 3429, 5248 specifications

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