Dell PowerVault MD3000 - Manual (Page 67)

Installing Enclosure Components
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Figure 4-8. Removing and Replacing the Controller/Power Supply Cage
5 Slide the controller/power supply cage out of the enclosure and place it aside.
6 Reaching into the enclosure chassis from the back, carefully disconnect the midplane from the control
panel and lift it out of the enclosure (see Figure 4-9).
7 To re-install the midplane, reverse the previous steps.
1 Phillips screws (4) 2 controller/power supply cage
2
1