How to Remove My Lenovo S10 CMOS Battery

Written by david ward
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How to Remove My Lenovo S10 CMOS Battery
The CMOS battery is typically located between the extension slots on a motherboard. (Ryan McVay/Photodisc/Getty Images)

The CMOS battery is necessary for maintaining system information, such as settings, time and date. If you have a Lenovo S10 that periodically produces errors, such as losing the system time and date, or onscreen errors regarding the CMOS, you may need to replace the CMOS battery, a small round battery on the motherboard. Fortunately, this is a process that can be done inexpensively if you do the work yourself. You will need to access the motherboard, identify the CMOS battery and replace it with the same model of battery.

Skill level:

Things you need

  • Flathead screwdriver
  • Replacement CMOS battery

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    Removing the S10 Desktop Cover

  1. 1

    Unplug all the cables from the back of the Lenovo S10. Particularly ensure that the power source has been removed so that no electricity builds up while you are using the computer.

  2. 2

    Disengage the latch on the side of the computer case and pull off the computer cover. Set the cover aside and do not touch the inside of the computer.

  3. 3

    Discharge any static electricity that may have built up on your body. This can be done by either touching a grounded metal object or using an antistatic wrist strap, available online or at local computer stores.

    Removing the CMOS Battery

  1. 1

    Locate the motherboard on the Lenovo S10. This board will be screwed into the computer case on the side opposite the removable cover. It is a large circuit board to which all computer components are connected.

  2. 2

    Locate the CMOS battery. It is a round, flat battery located between the PCI-ex 16 and PCI-ex 4 expansion slots. If you are unable to locate these slots, look for the round battery on the opposite side of the motherboard from the processor.

  3. 3

    Remove the CMOS battery by gently prying it out with a small, flathead screwdriver.

  4. 4

    Slide the new battery into place, ensuring it fits under the metal clip that holds it in place.

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