Asus AP120-E1 - Manual (Page 45)

ASUS P4P800S-E motherboard user guide 2-19
2. USB device wake-up (3-pin USBPW12, USBPW34, USBPW56,
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 sleep mode (no power to CPU, DRAM in slow refresh, power
supply in reduced power mode).
The USBPW12 and USBPW34 jumpers are for the rear USB ports.
The USBPW56 and USBPW78 jumpers are for the internal USB
header that you can connect to the front USB ports.
1. This feature requires a power supply that can provide at least 2A on the
+5VSB lead when these jumpers are set to +5VSB. Otherwise, the system
does not power up.
2. The total current consumed must NOT exceed the power supply capability
(+5VSB) whether under normal or in sleep mode.
P4P800S-E
®
3 2 2 1
P4P800S-E USB Device Wake Up
3 2 2 1
+5V
(Default)
+5VSB
USBPW12
USBPW34
+5V
(Default)
+5VSB
USBPW56
USBPW78