Coin-Cell Battery - Lenovo ThinkCentre M70s Hardware Maintenance Manual

3. Remove a PCI-Express card.
4. Remove the PCI-Express connector cable, if any. See "PCI-Express connector cable" on page 83. Then,
install the PCI-Express card.
5. Reinstall all the removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.

Coin-cell battery

Prerequisite
Before you start, read Chapter 1 "Important safety information" on page 1 and print the following
instructions.
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel connector assignments (configurations). A coin-cell battery keeps this information active
when you turn off the computer.
The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cell
battery lasts forever. If the coin-cell battery fails, the date and time information is lost. An error message is
displayed when you turn on the computer.
.
Chapter 6 Hardware removal and installation
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