User manual

Chapter 2 Installation
EC0-1815V2NAR - 15 -
Motherboard Power Supply Connector
1. 4pin CPU Power Connector (Pitch: 4.2mm)
Pin Signal Name
1 GND
2 GND
3 +12V
PWR1
4 +12V
2. 24pin ATX Power Connector (Pitch: 4.2mm)
Pin Signal Name Pin Signal Name
1 +3.3V 13 +3.3V
2 +3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON#
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 PWROK 20 -5V
9 +5VSB 21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
PWR2
12 +3.3V 24 GND
3-pin System Fan Connector
Pin Signal Name
1 GND
2 +12V
SYSFAN1
Pitch: 2.54mm
3 FAN_IO
Note: FAN_IO: fan speed impulse output.