The CMOS battery, also known as the RTC battery and the coin-cell battery, is the device that allows your M700 to maintain the settings of your hardware and operating system even when it is turned off. If the hardware is not working correctly and the time and date are not accurate, the CMOS battery may need replacing. On the M700, the CMOS battery is located in a base compartment, making the replacement a simple task.
Instructions
1. Shut down the computer from the "Start" menu. Allow the computer to turn off completely.
2. Disconnect the power cable from the computer and remove the battery pack from the computer.
3. Close the screen and turn the computer upside-down. Locate the modem/combo card compartment on the right side of the computer (adjacent to the modem/telephone and network cable ports).
4. Remove the two screws on the modem/combo card compartment cover and take the cover off.
5. Remove the modem/combo card from the compartment, disconnect the cables and set the card aside. The CMOS battery is now visible.
6. Disconnect the CMOS battery cable from its connector and remove the battery from the compartment.
7. Replace the CMOS battery, and reassemble the laptop by performing the previous steps in reverse order.
Tags: CMOS battery, combo card, modem combo, modem combo card, cable from