Asus Motherboard P5ND2 - Manual (Page 37)

ASUS P5ND2 1-25
2. USB device wake-up (3-pin USBPW1234, 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).
• 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.
P5ND2
R
P5ND2 USB device Wake up
3
2 2
1
USBPW1234
USBPW78
+5V
(Default)
+5VSB
USBPW56
3
2 2
1
+5V
(Default)
+5VSB
3
2 2
1
+5V
(Default)
+5VSB