Asus Vintage - Manual (Page 46)

46 Chapter 4: Motherboard information
2. USB device wake-up (3-pin USBPW12, USBPW34, USBPW56)
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). Both jumpers are set to pins 1-2 (+5V) by default
because not all computers have the appropriate power supply to support
this feature.
The USBPW_12 and USBPW_34 jumpers are for the rear USB ports. The
USBPW_56 jumper is for the internal USB header that you can connect to
the front USB ports.
•. This feature requires a power supply that can provide at least 1A on
the +5VSB lead when these jumpers are set to +5VSB; 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.
+5V
(Default)
+5VSB
2
1
3
2
AD1888
CODEC
P4S800-MX USB device wake-up
USBPW12
USBPW34
2 3 2 1
+5V
(Default)
+5VSB
USBPW56