Removing and Installing Parts 165DC Power Connector P15 (For 425-W PSU Only)NOTE: The P15 connector is intended for use with the PCI Express graphics cardswhose power requirements exceed 75 watts.Removing the Power Supply1 Follow the procedures in "Before You Begin" on page 99.2 Remove the computer cover (see "Removing the Computer Cover" onpage 101).NOTICE: Note the location and ID of each power connector before disconnectingthe power supply cables.3 Follow the DC power cables that stem from the power supply anddisconnect 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 themfrom being pinched or crimped.4 Remove the four screws that attach the power supply assembly to the backof the chassis.Pin Number Signal Name 18-AWG Wire Color1 +12 VC DC Blue/White2 +12 VC DC Blue/White3 +12 VC DC Blue/White4 COM Black5 COM Black6 COM Black1 2 34 65book.book Page 165 Tuesday, November 27, 2007 10:29 AM