Lenovo ThinkServer RD120 Hardware Maintenance Manual page 126

v For a 2.5-inch hard disk drive model, see "Removing the 2.5-inch-drive
Removing the 3.5-inch-drive hard disk drive backplane
To remove the 3.5-inch hard disk drive backplane 1 , complete the following steps.
10. If you are instructed to return the backplane, follow all packaging instructions,
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ThinkServer RD120 server Machine Types 6444, 6445, 6446, and 6447: Hardware Maintenance Manual
backplane" on page 110 and "Installing the 2.5-inch-drive backplane" on page
111.
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 53.
2. Turn off the server and peripheral devices, and disconnect the power cord and
all external cables.
Attention: In a dc power environment, only trained service personnel other
than Lenovo service technicians are authorized to connect or disconnect power
to the dc power supply. See the documentation that comes with each dc power
supply.
3. Remove the server from the rack and place it on a flat, static-protective
surface.
4. Pull the hard disk drives out of the server slightly to disengage them from the
backplane.
5. Remove the cover (see "Removing the cover" on page 56).
6. Remove the fan-bracket assembly (see "Removing the fan-bracket assembly"
on page 60).
7. Disconnect the backplane cables.
8. Press down on the blue release latches that are on each side of the hard disk
drive enclosure. The hard disk drive backplane pops out.
9. Lift the backplane out of the server.
and use any packaging materials for shipping that are supplied to you.