2.CPU frequency selection (SW1 Switches 1-5)

This option tells the clock generator what frequency to send the CPU, and to the AGP and PCI slots. This allows the selection of the CPU external frequency (or Bus Clock).

To select the CPU external frequency using the DIP switches, ensure that the J6 jumper is set to jumper mode.

SW1

 

 

5

 

 

5

 

 

5

 

 

5

 

 

5

 

 

4

 

 

4

 

 

4

 

 

4

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

3

 

 

3

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

3

ON

 

1 2

ON

 

1 2

ON

 

1 2

ON

 

1 2

ON

 

1 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU 100MHz 103MHz 105MHz 107MHz 109MHz

AGP 66MHz 68MHz 70MHz 71MHz 72MHz

PCI 33MHz 34MHz 35MHz 35MHz 36MHz

P4B533-VM

 

 

5

 

 

 

5

 

 

 

5

 

 

 

5

 

 

 

 

5

 

 

 

5

 

 

4

 

 

 

4

 

 

 

4

 

 

 

4

 

 

 

 

4

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

3

 

 

 

3

 

 

 

3

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

ON

 

1 2

 

ON

 

1 2

 

ON

 

1 2

 

ON

 

1 2

 

ON

 

 

1 2

 

ON

 

1 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU

111MHz

114MHz

120MHz

125MHz

133MHz

135MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AGP

74MHz

76MHz 60MHz 62MHz 66MHz 67MHz

 

 

 

 

 

 

 

P4B533-VM CPU

PCI

37MHz

38MHz

30MHz

31MHz

33MHz

33MHz

 

 

 

 

 

 

 

External Frequency Selection

Set the CPU frequency only to the recommended settings. Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable.

3.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.

 

KBPWR

1

 

2

2

 

3

+5V+5VSB (Default)

P4B533-VM

P4B533-VM Keyboard Power Setting

ASUS P4B533-VM motherboard user guide

2-17