Removing the power supply – Dell XPS 720 H2C (Mid 2007) User Manual
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Removing and Installing Parts
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
5 Remove the optional hard drive fan, if applicable (see "Removing the Optional Hard Drive Fan" on
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