Lenovo ThinkServer RD440 User Manual And Hardware Maintenance Manual page 189

Replacing the backplane for server models with eight 3.5-inch hard-disk-drive bays
Attention: Do not open your server or attempt any repair before reading and understanding "Safety information"
on page iii and "Guidelines" on page 87.
This topic provides instructions on how to replace the backplane for server models with eight 3.5-inch
hard-disk-drive bays.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
Note: To show the backplane clearly, the system fans are omitted from the illustrations in this topic.
To replace the backplane for server models with eight 3.5-inch hard-disk-drive bays, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. If the server is installed in a rack cabinet, remove the server from the rack cabinet and place it on a flat,
clean, and static-protective surface. See the Rack Installation Instructions that comes with the server.
3. Remove the server cover. See "Removing the server cover" on page 89.
4. Locate the backplane. See "Components of server models with eight 3.5-inch hard-disk-drive bays"
on page 35.
5. Remove all the installed 3.5-inch hot-swap hard disk drives and dummy trays (if any) from the
hard-disk-drive bays. See "Installing or replacing a hot-swap hard disk drive" on page 172.
6. Record the cable connections on the backplane and then disconnect all cables from the backplane.
7. Press each of the two latches on the chassis in the direction as shown until the latch snaps into the
open position and will not interfere with lifting the backplane.
Figure 138. Releasing the backplane for server models with eight 3.5-inch hard-disk-drive bays
.
Chapter 6 Installing, removing, or replacing hardware
177