Lenovo ThinkCentre M83, Hardware Maintenance Manual

Page: 210 / 308

7. Put the new cover presence switch into the hole and press it down until it snaps into position.
Note: Note the orientation of the cover presence switch.
Figure 166. Installing the cover presence switch
8. Connect the cable of the new cover presence switch to the cover presence switch connector on the
system board. See “Locating parts on the system board” on page 82.
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 234.
Replacing the primary hard disk drive
Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 “Safety information” on page 1.
This section provides instructions on how to replace the primary hard disk drive.
To replace the primary hard disk drive, 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. Remove the computer cover. See “Removing the computer cover” on page 159.
3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 160
202
ThinkCentre M83 and M93/p Hardware Maintenance Manual