2.USB device wake-up (3-pin PS2_USBPW1-4, USBPW5-8)

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).

PS2_USBPW1-4

1 2

+5V (Default)

2

3

+5VSB

USBPW5-8

1 2

+5V (Default)

2

3

+5VSB

USB Device Wake Up

•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-

Chapter 4: Motherboard info