Lenovo System x3550 M4 Installation And Service Manual page 216

To install a RAID adapter battery or flash power module holder, complete the following steps:
Step 1. Read the safety information that begins on "Safety" on page v and "Installation guidelines" on page
31.
Step 2. Turn off the server and peripheral devices and disconnect all power cords and external devices;
then, remove the cover (see "Removing the cover" on page 194).
Step 3. Align the holder and place the holder on the system tray.
Notes:
• There is one holder can be installed in the 3.5-inch models.
• There are two holders can be installed in the 2.5-inch models.
Figure 114. RAID adapter battery or flash power module holder installation
Step 4. Fasten the two screws come with the holder and make sure that the holder is secured firmly on the
system tray.
Step 5. Replacing the cover (see "Replacing the cover" on page 195).
Step 6. Slide the server into the rack.
Step 7. Reconnect the power cords and all external cables, and turn on the server and peripheral devices.
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Lenovo System x3550 M4 Installation and Service Guide