Asus P1P5945GCBLK manual USB Device Wake Up

2. USB device wake-up (3-pin USBPW12, USBPW34, USBPW78)

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

USBPW78

	3
2	2
1
+5V	+5VSB
	(Default)

USBPW12		2	3
1 2
+5V	+5VSB
	(Default)
USBPW34
	3
2	2
1
+5V	+5VSB
	(Default)

•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