2.7Switches and jumpers

The motherboard frequency is adjusted through the DIP switches. The white block represents the switch position. The illustration below shows the ON and OFF positions of the switches.

 

DSW

 

 

5

 

 

4

 

 

3

 

ON

1 2

 

ON

OFF

P4B533-M

1.Frequency Selection

 

2.Frequency Selection

 

3.Frequency Selection

P4B533-M DIP Switches

4.Frequency Selection

5.Frequency Selection

1.CPU frequency selection (DSW 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’s external frequency (or Bus Clock).

P4B533-M

DSW

 

 

 

5

 

 

 

5

 

 

 

 

5

 

 

 

 

5

 

 

 

4

 

 

 

4

 

 

 

 

4

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

3

 

 

 

 

3

 

 

 

3

 

 

 

 

 

 

 

 

 

 

ON

 

 

1 2

 

ON

 

1 2

 

ON

 

 

1 2

 

ON

 

 

1 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU 100MHz 105MHz 109MHz 133MHz

 

 

 

5

 

 

 

 

5

 

 

 

 

5

 

 

 

4

 

 

 

 

4

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

3

 

 

 

3

 

 

 

 

 

 

 

 

ON

 

 

1 2

 

ON

 

 

1 2

 

ON

 

 

1 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P4B533-M CPU

CPU 135MHz 139MHz 145MHz

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.

2-16

Chapter 2: Hardware information