Lenovo ThinkCentre M75q-1, User Manual, Page: 60 / 112

Figure 24. Installing the system fan
6. Connect the system fan cable to the system fan connector on the system board.
7. Complete the replacement. See “Completing the parts replacement” on page 65.
Coin-cell battery
Prerequisite
Before you start, read Appendix A “Important safety information” on page 71 and print the following
instructions.
DANGER
If the coin-cell battery is incorrectly replaced, there is danger of an explosion. The coin-cell battery
contains a small amount of harmful substance. To avoid possible injury:
• Replace only with a battery of the type recommended by Lenovo.
• Keep the battery away from fire.
• Do not expose it to excessive heat.
• Do not expose it to water or rain.
• Do not short-circuit it.
• Do not drop, crush, puncture the battery, or make it subject to strong forces. Battery abuse or
mishandling can cause the battery to overheat, which can cause gasses or flame to "vent" from
the battery or coin-cell battery.
Note: To dispose of the coin-cell battery, refer to “Lithium coin-cell battery notice” in the Safety and
Warranty Guide .
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.
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M75q-1 User Guide