2. USB device wake-up (3-pin USBPW1234, USBPW5678)

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).

A8V-X

 

USBPW1234

 

2

 

3

 

 

 

2

 

 

1

 

 

 

 

+5V

+5VSB

 

 

 

(Default)

 

 

USBPW5678

 

1

2

2

3

A8V-X USB Device Wake Up

+5V

+5VSB

 

 

(Default)

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. 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 is the Space Bar). This feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS.

A8V-X

KBPWR

1

2

 

2

3

 

 

 

 

 

+5V +5VSB (Default)

A8V-X Keyboard Power Setting

ASUS A8V-X

1-21

Page 33
Image 33
SMC Networks manual A8V-X Keyboard Power Setting