Dell NX430 Owner's Manual page 109

1. Follow the safety guidelines listed in Safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
3. Remove all hard drives.
4. Disconnect the SAS/SATA data, signal, and power cables from the backplane.
Steps
Press the release tabs and lift the backplane upward and slide it toward the back of the chassis.
Figure 35. Removing and installing the four 3.5-inch hard drive SAS/SATA backplane
1. guide pin (2)
3. release tab (2)
5. backplane signal cable
7. hard drive or SSD connector (4)
2. hard drive or SSD backplane
4. backplane power cable
6. SAS A connector on the backplane
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