Technical Product Specification

Connector/Header Locations and Pin-outs Intel® Server Board S5520UR and S5520URT TPS
Intel order number E44031-012 Revision 1.9
92
6.2 Power Connectors
The main power supply connection uses an SSI-compliant 2x12 pin connector (J2K1). In
addition, there are three additional power related connectors:
 One SSI-compliant 2x4 pin power connector (J3K1), which provides 12 V power to the
CPU Voltage Regulators and Memory.
 One SSI-compliant 1x5 pin connector (J1K2), which provides I
2
C monitoring of the
power supply.
The following tables define the connector pin-outs.
Table 42. Power Connector Pin-out (J2K1)
Pin
Signal
Color
Pin
Signal
Color
1
+3.3 Vdc
Orange
13
+3.3 Vdc
Orange
2
+3.3 Vdc
Orange
14
-12 Vdc
Blue
3
GND
Black
15
GND
Black
4
+5 Vdc
Red
16
PS_ON#
Green
5 GND Black 17 GND Black
6
+5 Vdc
Red
18
GND
Black
7
GND
Black
19
GND
Black
8 PWR_OK Gray 20 RSVD_(-5 V) White
9
5 VSB
Purple
21
+5 Vdc
Red
10
+12 Vdc
Yellow
22
+5 Vdc
Red
11 +12 Vdc Yellow 23 +5 Vdc Red
12
+3.3 Vdc
Orange
24
GND
Black
Table 43. 12 V Power Connector Pin-out (J3K1)
Pin
Signal
Color
1
GND
Black
2
GND
Black
3
GND
Black
4
GND
Black
5
+12 Vdc
Yellow/black
6
+12 Vdc
Yellow/black
7
+12 Vdc
Yellow/black
8
+12 Vdc
Yellow/black