Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 87

Removing the computer cover

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Removing the computer cover Attention: Do not open your computer or attempt any repair before reading and understanding "Important Safety Information" on page 1. This section provides instructions on how to remove the computer cover. CAUTION: Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover. To remove the computer cover, do the following: 1. Remove any media from the drives and turn off all attached devices and the computer. 2. Disconnect all power cords from electrical outlets. 3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the computer. See "Locating connectors, controls, and indicators on the front of your computer" on page 69 or "Locating connectors on the rear of your computer" on page 71. 4. Remove any locking device that secures the computer cover, such as an integrated cable lock. 5. 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. 6. Remove the frame stand. See "Removing and reinstalling the frame stand" on page 82. 7. Press the two cover-release buttons on the computer cover as shown, slide the computer cover toward the top of the computer, and then lift the computer cover up to remove it from the chassis. Figure 9. Removing the computer 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 127. Chapter 9. Replacing FRUs 83

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Removing the computer cover
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to remove the computer cover.
CAUTION:
Turn off the computer and wait three to five minutes to let the computer cool before removing the
computer cover.
To remove the computer cover, do the following:
1. Remove any media from the drives and turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the power cords, Input/Output cables, and any other cables that are connected to the
computer. See “Locating connectors, controls, and indicators on the front of your computer” on page
69 or “Locating connectors on the rear of your computer” on page 71.
4. Remove any locking device that secures the computer cover, such as an integrated cable lock.
5. 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.
6. Remove the frame stand. See “Removing and reinstalling the frame stand” on page 82.
7. Press the two cover-release buttons on the computer cover as shown, slide the computer cover toward
the top of the computer, and then lift the computer cover up to remove it from the chassis.
Figure 9. Removing the computer 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 127.
Chapter 9
.
Replacing FRUs
83