HP ET115AV HP xw4400 Workstation - Service and Technical Reference Guide - Page 157

CAUTION, never

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ATA/ATAPI (IDE) standard drive cable connector 14 DD13 28 CSEL 24-Pin Main power connector 13 24 1 1 2 3 4 5 6 7 12 +3.3 V +3.3 V GND +5 V GND +5 V GND 8 POK 14 -12 VL 21 +5 V GND 9 +5 Vaux 15 GND 22 +5 V and 10 +12 V-B 16 PS_O N_l +5 V-Rsense 11 +12 V-A 17 GND 23 +5 V 12 +3.3 V 18 GND 24 GND 13 +3.3 V 19 GND +3.3V-Rsense 20 GND CAUTION: Be sure you can differentiate between which power cable connects to the PCI 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 PCI Express on page 75. 6-Pin power (auxiliary system board) connector 46 13 Pin Color Signal 1 BLK w/ORG +3.3V 2 BLK w/ORG +3.3V 3 YEL +12V-A 4 BLK GND 5 BLK 6 YEL GND -12V ENWW Connector pin descriptions 147

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