Lenovo ThinkServer RD120 Hardware Maintenance Manual page 127

Installing the 3.5-inch-drive hard disk drive backplane
To install the replacement 3.5-inch-drive backplane , complete the following steps.
1. Orient the replacement hard disk drive backplane 1 so that the connectors for
the hard disk drives face the front of the server.
2. Place the notches that are at the bottom of the backplane frame onto the
mounting pins 2 that are on the lower outside of the hard disk drive enclosure.
3. Push the top of the hard disk drive backplane toward the front of the server until
it clicks into place. Make sure that the release latches hold the backplane
securely in place.
4. Connect the power and signal cables to the backplane.
5. Replace the fan bracket assembly (see "Installing the fan-bracket assembly" on
page 61).
6. Install the cover (see "Installing the cover" on page 57).
7. Slide the server into the rack.
8. Insert the hard disk drives into the bays.
9. Reconnect the external cables; then, reconnect the power cords and turn on the
peripheral devices and the server.
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.
Chapter 4. Removing and replacing server components
109