Hardware Installation

SY-P4I845PE Lite Quick Start Guide

Power On/Off: PWRBT

Connect your power switch to this header (momentary switch type).

To turn off the system, press this switch and hold down for longer than 4 seconds.

ATX 12V Power Supply: ATX PW

Attach the ATX 12V Power cable to three connector. (This motherboard requires an ATX 12V power supply, an AT and ATX power supply can NOT be used.)

When using the Power-On by PS/2 Keyboard function, please make sure the ATX power supply is able to provide at least 720mA on the 5V Standby lead (5VSB).

PS. Power supply must be use ATX 12V specification.

A new superset of the original ATX power supply is now defined. Named “ATX 12V,” this new power supply is comprised of a standard ATX unit plus the following enhancements:

Increased +12 VDC output capability. Mother board components with unique voltage requirements are increasingly expected to be powered via DC/DC converters off the +12 VDC power supply output. This trend is due primarily to the higher power conversion and transmission efficiencies of +12 VDC relative to +5 VDC or +3.3 VDC. ATX12V power supplies should be designed to accommodate these increased +12 VDC current requirements and to address associated issues such as cross-regulation, capacitive loading, transient surge tolerance, cable voltage drop, and cooling.

New +12 V power connector. To enable the delivery of more +12 VDC current to the motherboard, a new 4-pin receptacle/header combination--the + 12 V power

connector–has been defined. The presence of the +12 V power connector indicates that a power supply is ATX12V; the absence of the +12 V power connector indicates that a supply is ATX.

Please install the ATX power according to the following pin assignment:

ATXPower

12V

5V

 

 

5VSB

5V

Pay special care to the directionality.

PW-OK

-5V

GND

GND

 

 

5V

GND

Pin1

Pin3

GND

GND

 

 

5V

PS-ON

 

 

GND

GND

COM

+12VDC

3.3V

-12V

 

 

3.3V

3.3V

COM

+12VDC

+12VPowerConnector

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SOYO Lite Motherboard, SY-P41845PE quick start Power On/Off Pwrbt, ATX 12V Power Supply ATX PW