Asus F1A55-M LX PLUS R2.0 User Manual page 30

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 supply at least 1A
on the +5VSB lead, and a corresponding setting in the BIOS.
F1A55-M LX PLUS R2.0
F1A55-M LX PLUS R2.0 Keyboard power setting
3. USB device wake-up (3-pin USBPW1-6, 3-pin USBPW7-12)
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).
F1A55-M LX PLUS R2.0
F1A55-M LX PLUS R2.0 USB device wake-up
• The USB device wake-up feature requires a power supply that can provide 500mA on
• The total current consumed must NOT exceed the power supply capability (+5VSB)
1-20
(Default)
the +5VSB lead for each USB port; otherwise, the system would not power up.
whether under normal condition or in sleep mode.
KBPWR
+5VSB
+5V
USBPW1-6
+5VSB
+5V
(Default)
USBPW7-12
1 2 2 3
+5VSB
+5V
(Default)
Chapter 1: Product introduction