Dell XPS 720 (Mid 2007) - Manual (Page 151)

Removing and Installing Parts
151
DC Power Connector P16 (Graphics Card – 1-KW PSU Only)
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" on page 85.
2 Remove the computer cover (see "Removing the Computer Cover" on page 86).
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" on
page 108).
5 Remove the optional hard drive fan, if applicable (see "Removing the Optional Hard Drive Fan" on
page 137).
6 Remove the two screws that attach each hard drive bay.
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
1 2 3
4 6 5