EVGA 141-LF-E658 - Manual (Page 17)

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24-pin ATX Power (PW1)
PW1 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 1. PW1 Motherboard Connector
Table 1. PW1 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
8-pin ATX 12V Power ( PW12 )
PW12, the 8-pin ATX 12V power connection, is used to provide power to the CPU.
Align the pins to the connector and press firmly until seated.
PW1 connector
Plug power cable from system
power supply to PW1
1 12
13 24