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.

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.

KBPWR

2

3

2

1

 

+5V +5VSB

(Default)

P4B-MX

P4B-MX Keyboard Power Up

Figure 2-23 Keyboard Power Settings

ASUS P4B-MX motherboard user guide

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