HP xw4550 Service And Technical Reference Manual page 151

Pin Color
1 Orange
2 Orange
3 Black
4 Red
5 Black
6 Red
4-Pin power (processor/memory/aux. sys. board) cable
connector (mates with system board connector P3)
CAUTION: The 4-pin power cable connector is the color white.
You must mate it ONLY with white system board connector P3.
Mating this cable with any other system board connector and
applying power might damage your system board and void your
warranty.
Auxiliary 6-pin power cable connector for optional PCI
Express graphics card
4 6
1
3
NOTE: This connector and optional cable connect between an installed PCI Express graphics card auxiliary
power connector and the system board "Graphic Pwr" connector P4 for graphics cards that use more than 75
watts of power.
ENWW
Signal Pin Color
+3.3V 7 Black
+3.3V 8 Grey
GND 9 Purple
+5V 10 Yellow
GND 11 Yellow
+5V 12 Orange
Signal Pin Color
GND 13 Orange
POK 14 Blue
+5 Vaux 15 Black
+12 V 16 Green
+12 V 17 Black
+3.3V 18 Black
Pin Color
1 BLK
2 BLK
3 BRN
4 BRN
Pin
1
2
3
4
5
6
Signal Pin Color
+3.3V 19 Black
-12V 20
GND 21 Red
PS_ON 22 Red
_L
GND 23 Red
GND 24 Black
Signal
GND
GND
+12VCPU
+12VCPU
Color Signal
YEL +12VCPU
YEL +12VCPU
YEL +12VCPU
BLK GND
BLK GND
BLK GND
Connector pin descriptions 143
Signal
GND
Reserv
ed
+5V
+5V
+5V
GND