2.USB device wake-up (3-pin USBPW1-4, USBPW5-8)

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.

The USBPW1-4 jumpers are for the rear USB ports. The USBPW5-8 jumpers are for the internal USB connectors that you can connect to additional USB ports.

P5N-D

P5N-D USB device wake up

USBPW1-4

 

3

2

2

1

 

+5V

+5VSB

(Default)

 

USBPW5-8

1

2

2

3

 

+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 will 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) 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 500 mA on the +5VSB lead, and a corresponding setting in the BIOS.

P5N-D

KBPWR

 

3

2

2

1

 

+5V

+5VSB

(Default)

 

P5N-D Keyboard power setting

2-24

Chapter 2: Hardware information