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ASUS P4B-MX motherboard user guide
2-19
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) if you wish to wake up the
computer when you press a key on the keyboard (the default is the
Space Bar). This jumper is set to pins 1-2 (+5V) by default.
Figure 2-23 Keyboard Power Settings
®
P4B-MX
P4B-MX Keyboard Power Up
KBPWR
2
3
1
2
+5VSB+5V
(Default)
This feature requires a power supply that can provide at least 1A 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
condition or in sleep mode.