Asus K8U-X - Socket 754 Motherboard User Manual page 27

2. USB device wake-up (3-pin USBPWR12, USBPWR34, USBPWR56, USBPWR78)
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).
K8U-X USB device wake up
1. 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.
2. The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.
ASUS K8U-X Motherboard
®
USBPW34
USBPW12
3
2 2
1
+5V +5VSB
(Default)
USBPW78
USBPW56
2
1 2 3
+5V +5VSB
(Default)
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