HP Xw4400 - Workstation - 2 GB RAM Reference Manual page 157

13
1
CAUTION:
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
4 6
1
3
ENWW
ATA/ATAPI (IDE) standard drive cable connector
14
1
2
3
4
5
6
7
Be sure you can differentiate between which power cable connects to the PCI Express
PCI Express on page
6-Pin power (auxiliary system board) connector
DD13 28
24-Pin Main power connector
24
12
+3.3 V 8 POK
+3.3 V 9 +5 Vaux
GND 10 +12 V-B
+5 V 11 +12 V-A
GND 12 +3.3 V
+5 V 13 +3.3 V
GND +3.3V-Rsense
75.
CSEL
14 -12 VL 21
15 GND 22
16 PS_O
N_l
17 GND 23
18 GND 24
19 GND
20 GND
Pin Color
1 BLK w/ORG
2 BLK w/ORG
3 YEL
4 BLK
5 BLK
6 YEL
Connector pin descriptions 147
+5 V GND
+5 V and
+5 V-Rsense
+5 V
GND
Signal
+3.3V
+3.3V
+12V-A
GND
GND
-12V