Asus P5K SE EPU User Manual page 45

2. Keyboard power (3-pin PS2_USBPW)
This jumper allows you to enable or disable the keyboard and USB port 5-6
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 (the default is
the Space Bar) or using a USB device. This feature requires an ATX power
supply that can supply at least 1A on the +5VSB lead, and a corresponding
setting in the BIOS. The USBPW56 jumper is for the internal USB connectors
that you can connect to additional USB ports.
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P5K SE/EPU Keyboard power
3. USB device wake-up (3-pin USBPW1-4, USBPW78, USB9-12)
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).
The USBPW1-4 and USBPW78 jumpers are for the rear USB ports. The
USBPW9-12 jumper is for the internal USB connectors that you can connect
to additional USB ports.
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P5K SE/EPU 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 P5K SE/EPU
PS2_USBPW
1 2 2 3
+5V +5VSB
(Default)
USBPW1-4
USBPW78
3
2 2
1
+5V +5VSB
(Default)
USBPW9-12
1 2 2 3
+5V +5VSB
(Default)
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