Lenovo System x3250 M5 Installation And Service Manual page 244

Figure 157. 3.5-inch hot-swap hard disk drive backplane alignment
Step 4. Insert the drive backplane tabs into the slots of the backplane cage. Rotate the drive backplane
forward and push down the retention latch on top of the drive cage until the backplane is latched.
Figure 158. 3.5-inch hot-swap hard disk drive backplane installation
Step 5. Reinstall the hard disk drives and filler panels (see "Replacing a hot-swap hard disk drive" on
page 174).
Step 6. Reinstall the cover (see "Replacing the cover" on page 158).
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Lenovo System x3250 M5Installation and Service Guide