Lenovo ThinkCentre A70 Hardware Maintenance Manual for ThinkCentre A70 - Page 115

Replacing the battery, Remove the computer cover. See Removing the computer cover

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Figure 48. Installing the memory module 9. Reinstall any parts and reconnect any cables that have been removed or disconnected. 10. To complete the installation or replacement, go to "Completing the parts replacement" on page 132. Replacing the battery Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support Your computer has a special type of memory that maintains the date, time, and configuration information for built-in features. The 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. Before performing the following procedure, be sure to read and understand the information about replacing and disposing of the battery in the "Batteries" and "Lithium battery notice" sections of the ThinkCentre Safety and Warranty Guide. To replace the battery, 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 101. 3. Locate the battery. See "Locating parts on the system board" on page 99. 4. Remove any parts and disconnect any cables that might prevent your access to the battery. 5. Remove the old battery. Chapter 9. Replacing FRUs (Machine Types: 0889, 5023, and 7844.) 109

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Figure 48. Installing the memory module
9. Reinstall any parts and reconnect any cables that have been removed or disconnected.
10. To complete the installation or replacement, go to “Completing the parts replacement” on page 132.
Replacing the battery
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
ThinkCentre Safety and Warranty Guide
that came with your computer. To obtain a copy of the
ThinkCentre
Safety and Warranty Guide
, go to:
Your computer has a special type of memory that maintains the date, time, and configuration information for
built-in features. The 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.
Before performing the following procedure, be sure to read and understand the information about replacing
and disposing of the battery in the “Batteries” and “Lithium battery notice” sections of the
ThinkCentre
Safety and Warranty Guide
.
To replace the battery, 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 101.
3. Locate the battery. See “Locating parts on the system board” on page 99.
4. Remove any parts and disconnect any cables that might prevent your access to the battery.
5. Remove the old battery.
Chapter 9
.
Replacing FRUs (Machine Types: 0889, 5023, and 7844.)
109