Asus P4SDR-VM User Manual page 38

3. USB device wake-up (3-pin USBV1, USBV2, USBV3)
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 USBPV1 jumper is for the rear USB ports. The USBV2 and
USBV3 jumpers are for the internal USB headers.
1. This feature requires a power supply that can provide at least 1A
2. The total current consumed must NOT exceed the power supply
P4SDR-VM
®
P4SDR-VM USB Device Wake Up
2-16
on the +5VSB lead when these jumpers are set to +5VSB.
Otherwise, the system does not power up.
capability (+5VSB) whether under normal condition or in sleep
mode.
USBV1
3
2
2
1
+5V
+5VSB
(Default)
USBV2
USBV3
1 2 2 3
+5V +5VSB
(Default)
Chapter 2: Hardware information