Asus A8V-X - Manual (Page 33)

ASUS A8V-X 1-21
3. Keyboard power (3-pin KBPWR)
This jumper allows you to enable or disable the keyboard wake-up
feature. Set this jumper to pins 2-3 (+5VSB) if you wish 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 1A on the +5VSB lead, and a corresponding setting in
the BIOS.
2. USB device wake-up (3-pin USBPW1234, USBPW5678)
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.
A
8
V
-X
®
3 2 2 1
A8V-X USB Device Wake Up
+5V
(Default)
+5VSB
USBPW5678
+5V
(Default)
+5VSB
USBPW1234
2
1
3
2
A
8
V
-X
®
A8V-X Keyboard Power Setting
3 2 2 1
+5V
(Default)
+5VSB
KBPWR