EVGA nForce 122-YW-E173 - Manual (Page 21)

EVGA 13
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. This connector is notched, do not force in.
Figure 4. 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
12 +3.3V 24 GND
PWR1 connector
Plug power cable from system
power supply to PWR1
Board edge
24
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