Lenovo System x3550 M5 Installation And Service Manual page 236

Step 4. Remove the filler panels from the drive bay.
Step 5. Slide the blue release tab to the right with one finger while using another finger to grasp the black
drive handle and pull the hard disk drives out of the server slightly to disengage them from the hard
disk drive backplate (see "Removing simple-swap hard disk drives" on page 138).
Step 6. Remove the simple-swap hard disk drive backplate assembly. Based on the server configuration,
the simple-swap hard disk drive backplate assembly may appear as either of the following two.
Steps for removing a four 2.5-inch simple-swap-drive backplate assembly
Note: Two four 2.5-inch simple-swap-drive backplate assemblies are used for the eight 2.5-inch
simple-swap-drive server model.
a. Carefully lift the backplate assembly out of the chassis by pulling outwards and lifting it up.
Figure 141. Four 2.5-inch simple-swap-drive backplate assembly removal
Steps for removing a four 3.5-inch simple-swap-drive backplate assembly
a. Lift the release latches that secure the backplate assembly to the chassis.
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Lenovo System x3550 M5 Installation and Service Guide
Four 2.5-inch simple-swap-drive backplate