2. USB devi ce wake-up jumpers (3-pi n USBPW12, USBPW34, USBPW56, USBPW78)

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).

The USBPWR12 and USBPWR34 jumpers are for the rear USB ports. The USBPWR56 and USBPWR78 jumpers are for the internal USB connectors that you can connect to additional USB ports.

P5LD2 SE

P5LD2 SE USB Device Wake Up

1 22 3

 

 

 

 

USBPW34

+5V

+5VSB

USBPW12

 

 

(Default)

 

1

2

2

3

 

+5V

+5VSB

USBPW78

 

 

(Default)

 

1

2

2

3

 

+5V

+5VSB

USBPW56

 

 

(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.

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Chapter 2: Hardware information