Dell PowerEdge C6600 Installation And Service Manual page 56

Steps
1. Using the Phillips 2 screwdriver, remove the screws securing the midplane power cables to the PDB.
Figure 54. Removing the midplane power cables from the PDB
2. Using the Phillips 2 screwdriver, remove the screws securing the PDB to the chassis.
3. Holding the blue standoff, lift the PDB from the chassis.
56 Installing and removing system components