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 (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.

Card edge

PWR1 connector

Plug power cable from system power supply to PWR1

Figure 3. PWR1 Motherboard Connector

Table 1. PWR1 Pin Assignments

Connector

 

 

 

Pin

 

Signal

 

Pin

 

Signal

 

 

 

1

 

+3.3V

13

 

+3.3V

24

13

 

2

 

+3.3V

 

14

 

-12V

 

 

 

3

 

GND

15

 

GND

 

 

 

4

 

+5V

16

 

PS_ON

 

 

 

 

5

 

GND

 

17

 

GND

12

1

 

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

 

 

 

 

12

 

+3.3V

24

 

GND

 

 

 

 

 

 

 

 

 

 

 

18

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Image 30
Nvidia 650I manual Power Connections, Pin ATX Power PWR1