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3) USB Device Wake-up (2x3 pin USBPWR12, 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 USBPWR01 jumper activates the rear panel USB ports. The USBPWR23
jumper activates the internal header, USB23
A7N8X
®
A7N8X USB Device Wake Up
NOTE!
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.
20
This feature requires an ATX power supply that can supply at
USBPWR_12
USBPWR_34
1 2
2 3
+5V
+5VSB
(Default)
USBPWR_56
1
2
2
3
+5V
+5VSB
(Default)
Chapter 2: Hardware information
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