Lenovo ThinkCentre M92 Hardware Maintenance Manual (HMM) (May 2012) - ThinkCen - Page 238

Replacing the battery, Refer to the Lithium battery notice in

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11. Install the screw that secures the optical drive box on the VESA mount bracket. Figure 186. Installing the screw that secures the optical drive box 12. Connect the secondary hard disk drive cable to a USB connector on the computer. See "Locating connectors on the rear of your computer" on page 88. 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 262. Replacing the battery Attention: Do not open your computer or attempt any repair before reading and understanding the "Important safety information" on page 1. Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as parallel-port assignments (configuration). A battery keeps this information active when you turn off the computer. The battery normally requires no charging or maintenance throughout its life; however, no battery lasts forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An error message is displayed when you turn on the computer. Refer to the "Lithium battery notice" in the ThinkCentre Safety and Warranty Guide for information about replacing and disposing of the battery. To replace the battery, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See "Removing the computer cover" on page 217. 3. Locate the battery. See "Locating parts on the system board" on page 92. 232 ThinkCentre Hardware Maintenance Manual

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11. Install the screw that secures the optical drive box on the VESA mount bracket.
Figure 186. Installing the screw that secures the optical drive box
12. Connect the secondary hard disk drive cable to a USB connector on the computer. See “Locating
connectors on the rear of your computer” on page 88.
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 262.
Replacing the battery
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important
safety information” on page 1.
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel-port assignments (configuration). A battery keeps this information active when you turn
off the computer.
The battery normally requires no charging or maintenance throughout its life; however, no battery lasts
forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An
error message is displayed when you turn on the computer.
Refer to the “Lithium battery notice” in the
ThinkCentre Safety and Warranty Guide
for information about
replacing and disposing of the battery.
To replace the battery, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 217.
3. Locate the battery. See “Locating parts on the system board” on page 92.
232
ThinkCentre Hardware Maintenance Manual