Asus Motherboard P4V800-X User Manual page 27

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).
All jumpers are set to pins 1-2 (+5V) by default because not all computers have
the appropriate power supply to support this feature.
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 500mA on the +5VSB
lead for each USB port.
2. The total current consumed must NOT exceed the power supply capability
(+5VSB) whether under normal or in sleep mode.
®
P4V800-X
P4V800-X USB Device Wake Up
ASUS P4V800-X motherboard user guide
USBPW12
USBPW34
2
1 2 3
+5V +5VSB
(Default)
USBPW78
USBPW56
2
1 2 3
+5V +5VSB
(Default)
1-17