Removing A Hard Drive Backplane - Dell EMC PowerEdge T640 Installation And Service Manual

Figure 77. 18x 3.5 SAS/ SATA backplane
1 backplane power connector A
3 backplane power connector B
5 I2C connector
7 SAS A0_B0 connector
Figure 78. 8x 3.5 SAS/SATA backplane
1 optical drive power connector
3 SAS A0 connector
5 SAS B0 connector

Removing a hard drive backplane

Prerequisites
CAUTION: To prevent damage to the drives and backplane, you must remove the hard drives from the system before removing
the backplane.
134 Installing and removing system components
2 controller
4 optical drive power connector
6 backplane signal connector
2 backplane power connector
4 backplane signal connector