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4-4 Chapter 3: Starting up
• The USB device wake-up feature requires a power supply that can
provide 500 mA 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.
2. USB device wake-up (3-pin USBPW123456)
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 USBPW1234 jumper is for the rear USB ports. The USBPW5678
jumper is for the internal USB connectors that you can connect to
additional USB ports.
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M2N5-BN
M2N5-BN
USB Device Wake Up
USBPW12
2 3
1 2
(Default)
+5V
+5VSB
USBPW34
2 3
1 2
(Default)
+5V
+5VSB
USBPW56
2 3
1 2
(Default)
+5V
+5VSB
2. 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.
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M2N5-BN Keyboard Power Setting
2 3
1 2
(Default)
+5V
+5VSB
KBPWR