2. PS/2 and USB device wake-up (PS/2_USBPW1~4)
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 PS/2 or
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.
3. USB device wake-up (USBPW5~8)
This jumper allows you to enable or disable the USB device 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 USB keyboard or by clicking on the USB mouse. This feature requires an
ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding
setting in the BIOS.