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.

Board edge

PWR1 connector

Plug power cable from system power supply to PWR1

Figure 4. PWR1 Motherboard Connector

Table 1. PWR1 Pin Assignments

Connector

 

Pin

Signal

 

 

1

+3.3V

24

13

2

+3.3V

3

GND

 

 

 

 

 

4

+5V

 

 

5

GND

 

 

6

+5V

12

1

7

GND

 

 

8

PWROK

 

 

9

+5V_AUX

 

 

10

+12V

 

 

11

+12V

 

 

12

+3.3V

Pin Signal

13+3.3V

14-12V

15GND

16PS_ON

17GND

18GND

19GND

20RSVD

21+5V

22+5V

23+5V

24GND

EVGA 13

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Image 21
EVGA 122-YW-E173 manual Pin ATX Power PWR1, PWR1 Motherboard Connector PWR1 Pin Assignments