1.11Jumpers

1.USB device wake-up (3-pin USBPWR12, USBPWR34, USBPWR56)

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 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 rear panel USB ports (Ports 1 to 4) do not support device wake-up from S4 sleep mode.

 

 

USBPWR12

 

 

 

USBPWR34

 

 

1

2

2

3

 

 

+5V

+5VSB

 

(Default)

 

 

 

 

USBPWR56

 

P4SDX

1

2

2

3

 

P4SDX USB Device Wake Up

 

+5V

+5VSB

(Default)

 

 

2.Keyboard power (3-pin KBPWR)

This jumper allows you to enable or disable the keyboard wake-up feature. Set this jumper to pins 2-3 (+5VSB) if you wish to wake up the computer when you press a key on the keyboard (the default value is [Enabled]). This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead and a corresponding setting in the BIOS. (see section 2.5.1 Power Up Control)

KBPWR

1

2

 

2

3

 

 

 

 

 

+5V +5VSB (Default)

P4SDX

P4SDX Keyboard Power Setting

ASUS P4SDX motherboard user guide

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