EVGA H55V - Manual (Page 7)

24-pin ATX Power (ATXPOWER)
ATXPOWER 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.
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
4-pin ATX 12V Power (ATX_CPU)
ATX_CPU the 4-pin ATX 12V power connection, is used to provide power to the CPU. Align the
pins to the connector and press firmly until seated.
Connecting Serial ATA Cables
The Serial ATA II connector is used to connect the Serial ATA II device to the motherboard.
These connectors support the thin Serial ATA II cables for primary storage devices. The current
Serial ATA II interface allows up to 300MB/s data transfer rate.
Power Connector
Plug power cable from system
power supply to ATXPOWER
1 12
13 24