4.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

P4B266 Keyboard Power Setting

5.DDR voltage (4-pin DDR_OV)

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

It is recommended that you keep the default setting (Disable) for system stability. Setting to Stage1 and Stage2 does not guarantee better system performance.

DDR_OV

1

2

2

3

3

4

 

 

 

 

 

 

 

 

DISABLE STAGE1 STAGE2 (Default)

P4B266

P4B266 DDR_OV Setting

2-20

Chapter 2: Hardware information