Usb Device Wake-Up (3-Pin Usbpwf); Keyboard Wake-Up (3-Pin Kb_Usbpwb) - Asus A78M-A Manual

2.

Keyboard wake-up (3-pin KB_USBPWB)

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 supply at least 1A
on the +5VSB lead, and a corresponding setting in the BIOS.
A78M-A
A78M-A Keyboard and USB device wake up
3.

USB device wake-up (3-pin USBPWF)

Set this jumper 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).
A78M-A
A78M-A USB device wake up
• 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.
ASUS A78M-A
KB_USBPWB
+5VSB
+5V
(Default)
USBPWF
1 2 2 3
+5VSB
+5V
(Default)
1-13