2. USB devi ce wake-up (3-pi n USBPW12, USBPW34, USBPW56)

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 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode).

USB device Wake up

1

USBPW56

3

2

2

+5V(Default) +5VSB

1

USBPW34

3

2

2

+5V(Default)

+5VSB

 

USBPW12

 

 

1

 

 

 

2

 

2

+5V(Default)

 

3

+5VSB

•The USB device wake-up feature requires a power supply that can provide 500mA on the +5VSB lead for each USB port; otherwise, the system would not power up.

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

4-4

Chapter 4: Motherboard info