EVGA NFORCE 650I - Manual (Page 27)

Installing and Configuring the NVIDIA nForce 650i Ultra Motherboard
16
Power Connections
This motherboard requires an ATX power supply. Make sure you have enough
power to cover all the expansion cards you will be installing. To determine what
you power requirements are for your specific configuration, refer to
www.slizone.com .
24-pin ATX Power
(PWR1)
PWR1 is the main power supply connector located along the edge of the board
next to the DIMM slots. Make sure that the power supply cable and pins are
properly aligned with the connector on the motherboard. Firmly plug the power
supply cable into the connector and make sure it is secure.
Figure 3. PWR1 Motherboard Connector
Table 1. PWR1 Pin Assignments
Connector Pin Signal Pin Signal
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 RSVD
9 +5V_AUX
21 +5V
10 +12V 22 +5V
11 +12V 23 +5V
24
13
12 1
12 +3.3V 24 GND
PWR1 connector
Plug power cable from system
power supply to PWR1
Card edge