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Step 5 Use a screwdriver to tighten the captive installation screw on the top of the power supply.
Note For
Step 6 Push the cable retention clip away from the power supply receptacle, and push the power cable in until the cable retention clip snaps into place.
Step 7 Connect the opposite end of the power cable to an appropriate power source. Step 8 Repeat Step 1 through Step 7 to install the second power supply (optional).