Asus P5V-X SE - Manual (Page 37)

ASUS P5V-X SE 1-25
2. USB device wake-up (3-pin PS2_USBPW)
This jumper allows you to enable or disable the keyboard wake-up feature.
Set this jumper to pins 1-2 (+5V) to wake up the computer when you press a
key on the keyboard (the default is the Space Bar). This feature requires an
ATX power supply that can supply at least 500 mA on the +5V lead, and a
corresponding setting in the BIOS.
P5
V
-X SE
P5V-X SE USB Device Wake Up
3
2 2
1
PS2_USBPW
+5V
(Default)
+5VSB