Replace RTC Battery - X8400 and X8420

The following procedure describes how to replace the Real Time Clock (RTC) Battery on an X8400 or X8420 server module.

What to Do

  1. Power off and remove the blade from the chassis.

    See Power Blade On or Off.

  2. Remove the blade cover.

    See Remove Blade Cover.

  3. Locate the RTC battery in the right corner of the blade.

    The number 1 in the figure below highlights the location of the RTC battery on the X8400 and X8420 blade.

  4. Using your fingers, gently lift the battery from its socket.

  5. Locate the replacement RTC battery and insert it into the socket with the positive side (+) of the battery facing the bottom side of the socket.

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