5.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 feature requires an ATX power supply that can supply at least 1A on the +5VSB lead, and a corresponding setting in the BIOS (see section 4.5.1 Power Up Control). The default is setting is on pins 2-3 (+5VSB).

 

 

KBPWR

 

2

3

 

2

 

1

 

P4B-E

+5V

+5VSB

(Default)

P4B-E Keyboard Power Setting

Figure 2-26 Keyboard Power Settings

6.Speaker selector (3-pin SPEECH) (on audio models only)

This jumper allows you to select the speaker you wish to use for the ASUS POST Reporterª function. Set to pins 1-2 to use the internal speaker (usually included in the chassis). Set to pins 2-3 if you connected an external speaker to the Line Out jack (lime color) on the rear panel.

SPEECH

P4B-E

1

2

 

2

3

 

 

 

 

 

SPEAKER LINE_OUT (Default)

P4B-E Speaker Selector

Figure 2-27 Speaker Selection Settings

ASUS P4B-E motherboard user guide

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