Asus A55-C - Manual (Page 31)

2. Keyboard power (3-pin KBPWR)
This jumper allows you to enable or disable the keyboard wake-up feature. When you
set this jumper to pins 2-3 (+5VSB), you can wake up the computer by pressing a key
on the keyboard. This feature requires an ATX power supply that can provide at least
1A on the +5VSB lead, and a corresponding setting in the BIOS.
A55-C
A55-C Keyboard Power
1 2 2 3
+5V
(Default)
+5VSB
KBPWR
3. USB device wake-up (3-pin USBPW1~6; 3-pin USBPW7~10)
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).
A55-C
A55-C USB device wake up
1 2 2 3
+5V +5VSB
USBPW1~6
(Default)
1 2 2 3
+5V +5VSB
USBPW7~10
(Default)
ASUS A55-C 1-19