Lenovo M5800 Lenovo M5800 Hardware Maintenance Manual - Page 80

Replacing the battery, Safety, Warranty, and Setup Guide

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7. Pivot the card latch to the closed position to secure the PCI card. Figure 10. Installing a PCI card 8. Reinstall the screw to secure the PCI card latch in place. 9. To complete the installation or replacement, go to "Completing the parts replacement" on page 102. Replacing the battery Attention: Do not open your computer or attempt any repair before reading and understanding Chapter 1 "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 coin cell battery notice" in the Safety, Warranty, and Setup 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 69. 3. Locate the battery. See "Locating parts on the system board" on page 65. 74 Lenovo M5800 Hardware Maintenance Manual

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7. Pivot the card latch to the closed position to secure the PCI card.
Figure 10. Installing a PCI card
8. Reinstall the screw to secure the PCI card latch in place.
9. To complete the installation or replacement, go to “Completing the parts replacement” on page 102.
Replacing the battery
Attention:
Do not open your computer or attempt any repair before reading and understanding Chapter 1 “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 coin cell battery notice” in the
Safety, Warranty, and Setup 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 69.
3. Locate the battery. See “Locating parts on the system board” on page 65.
74
Lenovo M5800 Hardware Maintenance Manual