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USB device wake-up Jumpers: USB_PWR1 / USB_PWR2
1. Set the jumper to pins 1-2 (+5V) to wake up the computer from S1 sleep mode using the
connected USB devices.
2. Set the jumper to pins 2-3 (+5VSB) to wake up the computer from S3 and S4 sleep modes
using the connected USB devices. At the same time, a corresponding setting must be set in
BIOS as below:
Set “Power Management Setup” -> “USB Resume from S3” to “Enabled”.
USB_PWR1/2
+5V
(Default)
1
2
3
+5VSB
1
2
3
■ USB_PWR2 is for the internal USB connectors, USB_PWR1 is for the rear USB ports.
■ The USB device wake-up feature requires a power supply that can provide 500mA
on +5VSB lead for each USB port; otherwise, the system will not power up.
■ The total current consumed must not exceed the power supply capability (+5VSB)
whether under normal condition or in sleep mode.
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