HP Xw8400 - Workstation - 4 GB RAM Technical Reference Manual page 165

4-Pin power (memory system board) connector
8-Pin power (for CPUs)
5
1
NOTE: The 6-pin power (auxiliary PCI Express) is only required with high-powered graphics cards.
6-Pin power (auxiliary PCI Express)
4 6
1
3
ENWW
8
4
Pin Color
1 BLK
2 BLK
3 BLK w/YEL stripe
4 BLK w/YEL stripe
Pin Color
1 BLK
2 BLK
3 BLK
4 BLK
5 Gray
BLK w/WHT stripe
6 BLK w/WHT stripe
7 BLK w/light blue
stripe
8 BLK w/light blue
stripe
Pin Color
1 BLK w/YEL stripe
2 BLK w/YEL stripe
3 BLK w/YEL stripe
4 BLK
5 BLK
6 BLK
Connector pin descriptions 155
Signal
GND
GND
+12V-M
+12V-M
Signal
GND
GND
GND
GND
+12 V CPU0 Rsense
+12 V CPU0
+12VCPU0
+12VCPU1
+12VCPU1
Signal
+12V-G
+12V-G
+12V-G
GND
GND
GND