Lenovo System x3250 M5 Installation And Service Manual page 211

If you are replacing a server component in the server, you need to slide the server out from the rack
enclosure, turn off the server and peripheral devices, and disconnect the power cords and all external cables.
To replace a RAID adapter battery or flash power module in the server, complete the following steps:
Step 1. Install the battery or flash power module:
a. Remove the retainer.
b. Release the retention clip in the open position.
c. Align the cable connector with the slot on the holder. Place the battery or flash power module
into the holder and make sure that the holder engages the battery or flash power module
securely.
Figure 126. RAID adapter battery or flash power module installation
Note: The positioning of the remote battery or flash power module depends on the type of
the remote batteries or flash power modules that you install.
d. Connect the other end of the cable to the cable connector on the battery or flash power
module.
e. Lower and press down on the retention clip until it snaps in place to hold the battery or flash
power module firmly in place.
f. Install the retainer that you removed.
g. Install the retainer.
Step 2. Reinstall the cover (see "Replacing the cover" on page 158).
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Chapter 6 Removing and replacing server components
197