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).

 

KBPWR

 

3

2

2

1

 

+5V+5VSB (Default)

P4B266-E

P4B266-E Keyboard Power Setting

6.DDR voltage (4-pin DDR_OV)

This jumper allows you to select the voltage supplied to the system memory by changing the jumper setting.

DDR_OV

1

2

2

3

3

4

 

 

 

 

 

 

 

 

Reserved NORMAL STAGE1 (Default)

P4B266-E

P4B266-E DDR_OV Setting

It is recommended that you keep the default setting (Normal) for system stability. Setting to Stage1 does not guarantee better system performance.

2-20

Chapter 2: Hardware information