4) USB Device Wake-up (Three x 3 pin USBPWR_12, 34, 56)

Set these jumpers to +5V to allow wake up from the S1 sleep state (CPU stopped; RAM refreshed; system running in low power mode) using the connected USB devices. Set to +5VSB to allow wake up from S3 sleep state (no power to CPU; RAM in slow refresh; power supply in reduced power mode). The default setting for the three jumpers is [1-2] to select +5V (because not all computers have the appropriate power supply).

The USBPWR_12 jumper activates device wake-up on the rear panel USB ports. The USBPWR_34 jumper activates internal header, USB_34, and the USBPWR_56 jumper activates header, USB_56.

 

 

USBPWR_12

 

 

1

2

2

3

 

+5V

+5VSB

 

(Default)

 

 

 

 

USBPWR_34

 

A7S333

 

USBPWR_56

 

 

 

 

 

3

 

2

 

 

2

 

1

 

 

 

A7S333 USB Device Wake Up

 

+5V

+5VSB

(Default)

 

 

NOTE! This feature requires an ATX power supply that can supply at least 2A on the +5VSB lead when these jumpers are set to +5VSB. Otherwise, the system does not power up. The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal working conditions or in sleep mode.

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Chapter 2: Hardware information