1-15Chapter 1 Motherboard 4845PENote:When you set up P4 power supply, both PW1 and PW2 mustbe connected to power.Important:To switch on your power supply, please make sure:1. Memory Module is properly installed.2. Power supply setup is OK.Pin PW2 Signal Pin PW2 Signal1 3.3V 11 3.3V2 3.3V 12 -12V3 GND 13 GND4 5V 14 PS-ON5 GND 15 GND6 5V 16 GND7 GND 17 GND8 PW-OK 18 -5V9 5V_SB 19 5V10 12V 20 5V1.7.2 ATX Main Power Connectors: PW1/PW2This connector supports the power button on-board. Usingthe ATX power supply, functions such as Modem Ring Wake-Up and Soft Power Off are supported on this motherboard .T h i s p o w e r c o n n e c t o r s u p p o r t s i n s t a n t p o w e r - o nfunctionality, which means that the system will boot upinstantly when the power connector is inserted on the board.ATX 4-pin power connector only support +12V voltage.Pin PW1 Signal Pin PW1 Signal1 GND 2 GND3 +12V 4 +12V43 1211 01 12 0