Appendix D AT/ATX Power setting

D.1 Introduction

PCM-9387 supports 2 kinds of power mode to boot up system. One is ATX mode, the other is AT mode. ATX should connect standby power and power supply on# signal to turn on main power supply. AT power doesnít have those two pins and the pin 6 of PCM-9387 power connector (CN3) needs to be connected to 5 voltage for properly boot up.

The power connector table & Power supply diagram tables are as bellow:

Table D.1: Power Connector

Power Connector (CN3)

Power Type : ATX

Power Type : AT

 

 

 

Pin 1: GND

GND

GND

 

 

 

Pin 2: GND

GND

GND

 

 

 

Pin 3: VCC

+5V

+5V

 

 

 

Pin 4: GND

GND

GND

 

 

 

Pin 5: VCC

+5V

+5V

 

 

 

Pin 6:VCCSB

Standby +5V

+5V

 

 

 

Pin 7: GND

GND

GND

 

 

 

Pin 8: PWR_PSON#

PWR_PSON#

NC

 

 

 

Pin 9: VCC

+5V

+5V

 

 

 

Pin 10: GND

GND

GND

 

 

 

Pin 11: VCC

+5V

+5V

 

 

 

Pin 12: +12V

+12V(Optional)

+12V(Optional)

 

 

 

PCM-9387 User’s Manual

92

Page 104
Image 104
Intel PCM-9387 user manual Appendix D AT/ATX Power setting, Table D.1 Power Connector