2.Keyboard/mouse/USB device wake-up (3-pin USBPW1-4, USBPW56,

PS2_USBPWR)

This jumper allows you to enable or disable the keyboard/mouse/USB device wake-up feature. Set this jumper to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected keyboard, mouse or 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_USB_PWR

 

2

 

1

P5SD2-VM

+5V

 

 

(Default)

P5SD2-VM USB Device Wake Up

2 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.

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Chapter 1: Product introduction