Power Connections; 24-Pin Atx Power (Pwr1) - EVGA NVIDIA nForce 650i Ultra User Manual

Installing and Configuring the NVIDIA nForce 650i Ultra Motherboard

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
is the main power supply connector located along the edge of the board
PWR1
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.
Card edge
Figure 3. PWR1 Motherboard Connector
Table 1. PWR1 Pin Assignments
Connector
24
12
16
(PWR1)
PWR1 connector
Plug power cable from system
power supply to PWR1
Pin Signal Pin
1 +3.3V 13
13 2 +3.3V 14
3 GND 15
4 +5V 16
5 GND 17
6 +5V 18
1
7 GND 19
8 PWROK 20
9 +5V_AUX 21
10 +12V 22
11 +12V 23
12 +3.3V 24
Signal
+3.3V
-12V
GND
PS_ON
GND
GND
GND
RSVD
+5V
+5V
+5V
GND