Installing and Configuring the NVIDIA nForce 650i Ultra Motherboard
18
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