Lenovo System x3550 M4 Installation And Service Manual page 276

Figure 178. Backplane removal
Step 6. Disconnect all cables from the hard disk drive backplane.
If you are instructed to return the hard disk drive backplane, follow all packaging instructions, and use any
packaging materials for shipping that are supplied to you.
Replacing the hot-swap drive backplane
Use this information to replace the hot-swap drive backplane.
To install the replacement hot-swap hard disk drive backplane, 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. Reconnect the cables to the hard disk drive backplane.
Step 3. Align the sides of the drive backplane with the slots on the backplane bracket.
Step 4. Install the hard disk drive backplane.
Note: You can reconnect the cables to the hard disk drive backplane before installing the
backplane onto the brackets or you can connect the cables after you install the backplane, if
that is easier for you.
If you would like to install the 3.5-inch drive backplane.
a. Insert the hard disk drive backplane into the slots on the backplane bracket and push the hard
disk drive backplane down until the backplane is fully seated.
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System x3550 M4 Installation and Service Guide