b. Using both hands, gently pull the controller module out of the chassis and set it on a flat, stable
surface.
Replace the RTC battery
1. Remove the PCIe cover.
a. Unscrew the blue thumbscrew located above the onboard ports at the back of the controller module.
b. Slide the cover toward you and rotate the cover upward.
c. Remove the cover and set it aside.
2. Locate, remove, and then replace the RTC battery:
a. Using the FRU map, locate the RTC battery on the controller module.
b. Gently push the battery away from the holder, rotate it away from the holder, and then lift it out of the
holder.
Note the polarity of the battery as you remove it from the holder. The battery is marked
with a plus sign and must be positioned in the holder correctly. A plus sign near the
holder tells you how the battery should be positioned.
c. Remove the replacement battery from the antistatic shipping bag.
d. Note the polarity of the RTC battery, and then insert it into the holder by tilting the battery at an angle
and pushing down.
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