1.10 Jumpers

This section describes and illustrates the jumpers on the motherboard.

1.USB device wake-up (3-pin USBPWR_12, USBPWR_34, USBPWR_56)

Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to +5VSB to wake up from S3 sleep mode (no power to CPU, DRAM in slow refresh, power supply in reduced power mode).

This feature requires a power supply that can provide at least 1A on the +5VSB lead when these jumpers are set to +5VSB. Otherwise, the system does not power up.

The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode.

 

USBPWR_34

 

3

2

2

1

 

+5V+5VSB (Default)

USBPWR_12

USBPWR_56

P4BGV-MX

1

2

 

2

3

 

 

 

 

 

+5V+5VSB

P4BGV-MX USB Device Wake Up (Default)

1-10

Chapter 1: Motherboard Information