Removing the CMOS battery

Use this information to remove the CMOS battery.

Before you remove the CMOS battery, complete the following steps:
  1. Read Safety and Installation guidelines.
  2. If the compute node is installed in a Lenovo Flex System chassis, remove it (see Removing a compute node from a chassis for instructions).
  3. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the bezel pointing toward you.

To remove the CMOS battery, complete the following steps:

  1. Remove the cover (see Removing the compute node cover).
  2. Locate the CMOS battery on the system board (see System-board connectors).
  3. If a cover is over the CMOS battery, remove the cover.
  4. Pivot the CMOS battery toward the middle of the compute node.

    battery removal
  5. Lift the CMOS battery from the socket.
After you remove the CMOS battery, dispose of the CMOS battery as required by local ordinances or regulations.
Parent topic: Removing and replacing Tier 1 customer replaceable units (CRUs)