Dell PowerVault MD3400 Owner's Manual page 32

11. Remove the screws that secure the backplane and pull the backplane out of the array.
Figure 22. Removing and Installing the RAID Controller Module/Power Supply Cage
1. screws (6)
Figure 23. Removing and Installing the Backplane—PowerVault MD3400
1. screws (5)
3. captive screw
32
2. RAID controller module/power supply
cage
2. backplane