Dell 720H2C appendix Removing the Power Supply, DC Power Connector P16 Graphics Card 1-KW PSU Only

Pin Number	Signal Name	18-AWG Wire Color
1	+12 VB DC	White
2	+12 VB DC	White
3	+12 VB DC	White
4	COM	Black
5	COM	Black
6	COM	Black

DC Power Connector P16 (Graphics Card – 1-KW PSU Only)

Pin Number	Signal Name	18-AWG Wire Color
1	+12 VC DC	Blue/White
2	+12 VC DC	Blue/White
3	+12 VC DC	Blue/White
4	COM	Black
5	COM	Black
6	COM	Black

NOTE: The P15 and P16 connectors are intended for use with the PCI Express graphics cards whose power requirements exceed 75 watts.

Removing the Power Supply

1.Follow the procedures in Before You Begin.

2.Remove the computer cover (see Removing the Computer Cover).

NOTICE: Note the location and ID of each power connector before disconnecting the power supply cables.

3. Follow the DC power cables that stem from the power supply and disconnect each connected power cable.

NOTE: Note the routing of the power cable bundles as you disconnect them. You must route these cables properly when you replace them to prevent them from being pinched or crimped.

4.Remove all hard drives installed in the interior hard drive bays (see Removing a Hard Drive).

5.Remove the optional hard drive fan, if applicable (see Removing the Optional Hard Drive Fan).

6.Remove the two screws that attach each hard drive bay.

7.Remove the hard drive bays from the chassis.