HP xw4400 Service And Technical Reference Manual page 175

6-Pin power (auxiliary system board) connector P8
4 6
1
3
8-Pin power (for CPUs and memory) P3
5
1
CAUTION
Express x16 graphics card and which power cable connects to the system board. These two
cables have different pin counts and different colors. The PCI Express power cable has a 6-pin
black connector, and the system board power cable has an 8-pin white connector. When power
is present, you must never connect the PCI Express power cable to the system board. If you do
so, the system board may be damaged and your warranty voided. To see a picture of the PCI
Express cable and where it must be connected, see the section "PCI or PCI Express Installation."
NOTE
cards.
ENWW
8
4
Be sure you can differentiate between which power cable connects to the PCI
The 6-pin power (auxiliary PCI Express) is only required with high-powered graphics
Pin Color
1 BLK w/ORG
2 BLK w/ORG
3 YEL
4 BLK
5 BLK
6 YEL
Pin Color
1 BLK
2 BLK
3 BLK
4 BLK
5 WHT
WHT
6 WHT
7 WHT
with
stripe
8 WHT
with
stripe
Connector pin descriptions
Signal
+3.3V
+3.3V
+12V-A
GND
GND
-12V
Signal
GND
GND
GND
GND
+12VCPU0
+12VCPU0 RSENSE
+12VCPU0
+12VCPU1
+12VCPU1
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